• 2025
• 2024
• 2022
• 2021
• 2020
• 2019
• 2018
• 2017
• 2016
• 2015
• 2014
• 2013
• 2012
• 2011
• 2010
• 2009
• 2008
• 2007
• 2006
• 2005
• 2004
• 2003
• 2002
• 2001
• 2000
• 1998

2025

• Hemmelder, André, Sehnal, Anne, Lux, Simon, and Leker, Jens. 2025. “Big data analytics for strategic decision-making across the battery value chain: a review of status, trends, and future directions.” Energy Strategy Reviews 60 101797. doi: 10.1016/j.esr.2025.101797.
• Hemmelder, André, Tietze, Frank, Lux, Simon, Leker, Jens, Jahnke, Lars, and von Delft, Stephan. 2025. “The geostrategic race for leadership in future electric vehicle battery technologies.” Energy and Environmental Science 18 (12): 6117–6130. doi: 10.1039/d5ee00301f.

2024

• Frieden, Florian, and Leker, Jens. 2024. “Future costs of hydrogen: a quantitative review.” Sustainable Energy & Fuels 8: 1806–1822. doi: 10.1039/D4SE00137K.
• Heck, Janine; Jahnke, Lars; Leker, Jens. 2024. “Early evidence of a transition towards sustainability-oriented decision-making in the chemical industry in Germany, Austria, and Switzerland: A choice-based conjoint analysis.” Energy Policy 187 114028. doi: 10.1016/j.enpol.2024.114028.
• Gutsch, Moritz, and Leker, Jens. 2024. “Costs, carbon footprint, and environmental impacts of lithium-ion batteries – From cathode active material synthesis to cell manufacturing and recycling.” Applied Energy 353. doi: 10.1016/j.apenergy.2023.122132.
• Gutsch, Moritz, and Leker, Jens. 2024. “Co-assessment of costs and environmental impacts for off-grid direct air carbon capture and storage systems.” Communications Engineering 3. doi: 10.1038/s44172-023-00152-6.
• Overwien, Anja; Jahnke, Lars; Leker, Jens. 2024. “Can entrepreneurship education activities promote students' entrepreneurial intention?” International Journal of Management Education 22 (1) 100928. doi: 10.1016/j.ijme.2023.100928.
• Heck, Janine, von Delft, Stephan, and Leker, Jens. 2024. “Greenhouse gas neutrality: A qualitative analysis of perceived sustainability tensions in the German chemical industry.” Energy Research & Social Science 112 103525. doi: 10.1016/j.erss.2024.103525.
• Frieden, Florian, Leker, Jens, and von Delft, Stephan. 2024. “A multi-objective analysis of grid-connected local renewable energy systems for industrial SMEs.” Journal of Energy Storage 98 113033. doi: 10.1016/j.est.2024.113033.
• Heck, Janine, Utikal, Hannes, and Leker, Jens. 2024. “Industrial symbiosis as enabler and barrier for defossilization: The case of Höchst Industrial Park.” Environmental Technology and Innovation 36. doi: 10.1016/j.eti.2024.103850.

2022

• Chofor, Asaba M, Duffner, F, Frieden, F, Leker, J, and von Delft, S. 2022. “Location choice for large-scale battery manufacturing plants: Exploring the role of clean energy, costs, and knowledge on location decisions in Europe.” Journal of Industrial Ecology 26 (4): 1514–1527. doi: 10.1111/jiec.13292.
• Gutsch, Moritz, and Leker, Jens. 2022. “Global warming potential of lithium-ion battery energy storage systems: A review.” Journal of Energy Storage 52 (C): 105030–105030. doi: 10.1016/j.est.2022.105030.
• Karla Margarete, Gehde, Leker, Jens, and Rausch, Florian. 2022. “Business model configurations in digital healthcare - a german case study about digital transformation.” International Journal of Innovation Management 26 (3): 1–78. doi: 10.1142/S1363919622400187.
• Mauler, Lukas, Dahrendorf, Laureen, Duffner, Fabian, Winter, Martin, and Leker, Jens. 2022. “Cost-effective technology choice in a decarbonized and diversified long-haul truck transportation sector: A US case study.” Journal of Energy Storage 46. doi: 10.1016/j.est.2021.103891.
• Greenwood, Matthew Wrogemann Jens, Schmuch, Richard Jang Hwamyung, and Winter, Martin Leker Jens. 2022. “The Battery Component Readiness Level (BC-RL) framework: A technology-specific development framework.” Journal of Power Sources Advances 14 100089. doi: 10.1016/j.powera.2022.100089.

2021

• Duffner, F, Kronemeyer, N, Tübke, J, Leker, J, Winter, M, and Schmuch, R. 2021. “Post-lithium-ion battery cell production and its compatibility with lithium-ion cell production infrastructure.” Nature Energy 2021. doi: 10.1038/s41560-020-00748-8.
• Ahlfänger, Marcel Gemünden, and Hans Georg Leker, Jens. 2021. “Balancing knowledge sharing with protecting: The efficacy of formal control in open innovation projects.” International Journal of Project Management online. doi: 10.1016/j.ijproman.2021.09.007.
• Ahlfänger, Marcel Gemünden, and Hans Georg Leker, Jens. 2021. “Balancing Value Creation and Capture: The Efficacy of Formal Control in Open Innovation Projects.” contribution to the EURAM 2021, Québec, Canada
• Ahlfänger, Marcel, Leker, and Jens. 2021. “Resolving the Open Innovation Paradox: A Dynamic Capabilities Perspective.” contribution to the ISPIM 2021, Berlin, Germany
• Kohut, Oswin, Magdalena, Leker, Lohne, Bröring, Jens, and Stephanie. 2021. “Market convergence from a start-up perspective: The case of probiotics.” PharmaNutrition 15. doi: 10.1016/j.phanu.2020.100243.
• Mauler, Lukas Duffner, and Fabian, Leker Jens. 2021. “Economies of scale in battery cell manufacturing: The impact of material and process innovations.” Applied Energy 286: https://doi.org/10.1016/j.apenergy.2021.116499..
• Greenwood, Matthew, Wentker, Marc, and Leker, Jens. 2021. “A region-specific raw material and Iithium-ion battery criticality methodology with an assessment ofNMC cathode technology.” Applied Energy 302. doi: 10.1016/j.apenergy.2021.117512.
• Greenwood, Matthew, Wentker, Marc, and Leker, Jens. 2021. “A bottom-up performance and cost assessment of lithium-ion battery pouch cells utilizing nickel-rich cathode active materials and silicon-graphite composite anodes.” Journal of Power Sources 9. doi: 10.1016/j.powera.2021.100055.
• Ahlfänger, Marcel Kohut, and Magdalena, Leker Jens. 2021. “Revisiting the Competing Institutional Logics in Corporate Venture Capital Units.” contribution to the ISPIM Connects Valencia, Valencia
• Kohut, Magdalena, Ahlfänger, Marcel, and Leker, Jens. 2021. “The Impact of Strategy and Structure on the Performance of Corporate Venture Capital Units.” International Journal of Innovation Management online: 1–57. doi: 10.1142/S1363919621500948.

2020

• Wentker, Marc Jüstel, and Thomas, Leker Jens. 2020. “Economic aspects.” in Rare Earth Chemistry, edited by Rainer Jüstel Pöttgen and Cristian A. Thomas Strassert. Berlin/Boston: De Gruyter.
• Duffner, Fabian Mauler, Lukas Wentker, Marc Leker, and Jens Winter, Martin. 2020. “Large-scale automotive battery cell manufacturing: Analyzing strategic and operational effects on manufacturing costs.” International Journal of Production Economics 232. doi: 10.1016/j.ijpe.2020.107982.
• Klein, Johannes Stuckenborg, and Leonard, Leker Jens. 2020. “Hot or not - Which features make FinTechs attractive?” The Journal of Entrepreneurial Finance 22 (1).
• Duffner, Fabian, Wentker, Marc, Greenwood, Matthew, and Leker, Jens. 2020. “Battery cost modeling: A review and directions for future research.” Renewable and Sustainable Energy Reviews 127. doi: 10.1016/j.rser.2020.109872.
• Duffner, Fabian Krätzig, and Oliver, Leker Jens. 2020. “Battery plant location considering the balance between knowledge and cost: A comparative study of the EU-28 countries.” Journal of Cleaner Production 264. doi: 10.1016/j.jclepro.2020.121428.
• Ahlfänger, Marcel Kohut, and Magdalena, Leker Jens. 2020. “Reconciling Competing Institutional Logics in Corporate Venture Capital Units.” International Journal of Innovation Management 24 (8). doi: 10.1142/S1363919620400046.
• Stoffels, Marius Klauck, Felix J. R. Hamadi, Thomas Glorius, and Frank, Leker Jens. 2020. “Technology Trends of Catalysts in Hydrogenation Reactions: A Patent Landscape Analysis.” Advanced Synthesis & Catalysis 362 (6): 1258–1247.
• Herrmann, Ruth, Leker, and Jens. 2020. “Erfolgreiche Unternemensgründung im Spannungsfeld von Entrepreneur-perönlichkeitsmerkmalen und Gründungssituationen.” in Perspektiven des Entrepreneurships, edited by Katharina Tiberius Hölzle and Heike Victor Surrey. Stuttgart: Schäffer-Poeschel Verlag.

2019

• Wentker, Marc Greenwood Matthew, and Chofor Asaba Marius, Leker Jens. 2019. “A raw material criticality and environmental impact assessment of state-of-the-art and post-lithium-ion cathode technologies.” Journal of Energy Storage 26: 1–17. doi: 10.1016/j.est.2019.101022.
• Aaldering, Lukas Jan, Leker, Jens, and Song, Chie Hoon. 2019. “Analysis of technological knowledge stock and prediction of its future development potential: The case of lithium-ion batteries.” Journal of Cleaner Production 2019 (223): 301–311. doi: 10.1016/j.jclepro.2019.03.174.
• Aaldering, Lukas Jan, Leker, Jens, and Song, Chie Hoon. 2019. “Competition or collaboration? – Analysis of technological knowledge ecosystem within the field of alternative powertrain systems: A patent-based approach.” Journal of Cleaner Production 212: 362–371. doi: 10.1016/j.jclepro.2018.12.047.
• Wentker, Marc, Greenwood, Matthew, and Leker, Jens. 2019. “A Bottom-Up Approach to Lithium-Ion Battery Cost Modeling with a Focus on Cathode Active Materials.” Energies 12 (3). doi: 10.3390/en12030504.
• Aaldering, L, Leker, J, and Song, CH. 2019. “Recommending untapped M&A opportunities: A combined approach using principal component analysis and collaborative filtering.” Expert Systems with Applications 125: 221–232. doi: 10.1016/j.eswa.2019.02.004.
• Aaldering, LJ, Leker, J, and Song, CH. 2019. “Uncovering the dynamics of market convergence through M&A.” Technological Forecasting and Social Change 138: 95–114. doi: 10.1016/j.techfore.2018.08.012.
• Leker, Song, Jens, and Chie, Hoon. 2019. “Differentiation of innovation strategies based on pharmaceutical licensing agreements: Insight from Korean pharmaceutical firms.” Technology Analysis and Strategic Management 31 (2): 169–185. doi: 10.1080/09537325.2018.1490711.
• Sick, Preschitschek, Nathalie, Leker, Nina, Bröring, Jens, and Stefanie. 2019. “A new framework to assess industry convergence in high technology environments.” Technovation 84: 48–58.

2018

• Hamadi, T., Leker, J., and Meerholz, K. 2018. “Emergence of Innovation Champions: Differences in the R&D Collaboration Process Between Science and Industry.” International Journal of Innovation Management 22: 1840008-1–1840008-17. doi: 10.1142/S136391961840008X.
• Zhu, H, Kock, A, Wentker, M, and Leker, J. 2018. “How Does Online Interaction Affect Idea Quality? The Effect of Feedback in Firm‐internal Idea Competitions.” Journal of Product Innovation Management 35 (2). doi: 10.1111/jpim.12442.
• Leker, Jens, Gelhard, Carsten, and Stephan, von Delft, eds. 2018. Business Chemistry: How to Build and Sustain Thriving Businesses in the Chemical Industry. Preprint. John Wiley & Sons.
• Aaldering, LJ, Leker, J, and Song, CH. 2018. “Analyzing the impact of industry sectors on the composition of business ecosystem: A combined approach using ARM and DEMATEL.” Expert Systems with Applications 100: 17–29. doi: 10.1016/j.eswa.2018.01.045.
• Stoffels, M, and Leker, J. 2018. “The Impact of IT Assets on Innovation Performance – The Mediating Role of Developmental Culture and Absorptive Capacity.” International Journal of Innovation Management Online.

2017

• Stuckenborg, Leonard, Klein, Johannes, and Leker, Jens. 2017. “FinTech start-ups: How do business model, area of activity and revenue model relate - A study of the German market.” Corporate Finance 2017 (09-10): 257–268.
• Krätzig, O., Hamadi, T., Sick, N., Meerholz, K., and Leker, J. 2017. “Innovation promoters in technology transfer and insights from ‘Technology transfer between science and industry’.” contribution to the Advanced Battery Power 2017, Aachen, Germany
• Hamadi, Thomas, Leker, Jens, and Meerholz, Klaus. 2017. “Establishing science-to-business collaborations via Internet – an investigation of website effectiveness.” contribution to the R&D Management Conference, Leuven, Belgium
• Song, C., Elvers, D., and Leker, J. 2017. “Anticipation of converging technology areas — A refined approach for the identification of attractive fields of innovation.” Technological Forecasting and Social Change 116 (null): 98–115. doi: 10.1016/j.techfore.2016.11.001.

2016

• Elvers, D., Song, C., Steinbüchel, A., and Leker, J. 2016. “Technology Trends in Biodegradable Polymers: Evidence from Patent Analysis.” Polymer Reviews 56 (4): 584–606. doi: 10.1080/15583724.2015.1125918.
• Zhu, Hangzi, Sick, Nathalie, and Leker, Jens. 2016. “How to use crowdsourcing for innovation? A comparative case study of internal and external idea sourcing in the chemical industry.” contribution to the PICMET’16 "Technology Management for Social Innovation, Honolulu, Hawaii, USA
• Nicole, vom Stein, Sick, Nathalie, and Leker, Jens. 2016. “Interaction of calculated and perceived distance dimensions – Evidence from a battery research project.” contribution to the PICMET’16 "Technology Management for Social Innovation", Honolulu, Hawaii, USA
• Strudthoff, Maike, Sick, Nathalie, and Leker, Jens. 2016. “Knowledge networks in battery research projects.” contribution to the Kraftwerk Batterie, Münster
• Golembiewski, Birte, Sick, Nathalie, and Leker, Jens. 2016. “Cross-industry collaboration along the electric mobility value chain.” contribution to the Kraftwerk Batterie, Münster
• Strudthoff, Maike, Sick, Nathalie, and Leker, Jens. 2016. “Knowledge networks based on technological distances.” contribution to the The XXVII ISPIM Conference “Blending Tomorrow's Innovation Vintage", Porto, Portugal
• Sick, Nathalie Nienaber Ann-Marie, Liesenkötter, Bernd vom Stein Nicole, and Schewe, Gerhard Leker Jens. 2016. “The legend about sailing ship effects – is it true or false? The example of cleaner propulsion technologies diffusion in the automotive industry.” Journal of Cleaner Production 88: 405–413.
• Simon, H., and Leker, J. 2016. “Using startup communication for opportunity recognition - An approach to identify future product trends.” International Journal of Innovation Management 20 (8). doi: 10.1142/S1363919616400168.

2015

• Nienaber, Ann-Marie, Holtorf, Verena, Leker, Jens, and Schewe, Gerhard. 2015. “A Climate of Psychological Safety enhances the Success of Front End Teams.” International Journal of Innovation Management 19 (02). doi: 10.1142/S1363919615500279.
• Sick, N., Golembiewski, B., and Preschitschek, N.and Leker J. 2015. “Market convergence in electric mobility - An empirical analysis of cross-industry collaborations.” contribution to the ISPIM Innovation Summit 2015 “Changing the Innovation Landscape”, Brisbane, Australien
• Everling, Oliver, Leker, Jens, and Bielmeier, Stefan, eds. 2015. Credit Analyst 3. edt. Berlin/Boston: De Gruyter.
• Sick, Nathalie, Preschitschek, Nina, and Leker, Jens. 2015. “Cross industry collaboration the field of stationary battery systems.” contribution to the Kraftwerk Batterie, Aachen, Deutschland
• Sick, Nathalie Preschitschek Nina, and Bröring, Stefanie Leker Jens. 2015. “Market convergence in the field of stationary energy storage systems.” contribution to the PICMET '15 Conference "Management of the Technology Age", Portland, Oregon, USA
• Leker, Jens Liesenkötter Bernd, Nienaber, Ann-Marie Schewe Gerhard, and Sick, Nathalie vom Stein Nicole. 2015. “Still waiting for electric cars to break through – Blame it on the sailing ship effect!” contribution to the The XXVI ISPIM Conference – Shaping the Frontiers of Innovation Management, Budapest, Ungarn
• Nicole, vom Stein, Sick, Nathalie, and Leker, Jens. 2015. “How to measure technological distance in collaborations - The case of electric mobility.” Technological Forecasting and Social Change 97 (August 2015): 154–167..
• Leker, Jens Sonius David. 2015. “Berücksichtigung von Ausfallwahrscheinlichkeiten in der Unternehmensbewertung.” in Praxishandbuch der Unternehmensbewertung, edited by Peemöller Volker. Herne: NWB Verlag.

2014

• Song Chie Hoon, Leker Jens. 2014. “Die Prognose von Konvergenzentwicklungen zur Identifikation attraktiver Innovationsfelder.” in Motoren der Innovation, edited by Carsten Schultz and Katharina Hölzle.
• Schwarzlose, Julia, Leker, Jens, and Kortmann, Sebastian. 2014. “Ambidextrous Temas.” contribution to the XXV ISPIM Conference, Dublin
• Wosnitza, Jan, and Leker, Jens. 2014. “Can log-periodic power law structures arise from random fluctuations?” Physica A 401: 428–450.
• Zhu, H., and Leker, J. 2014. “Searching for ideas externally.” Nachrichten aus der Chemie 62 (12): 163–166.
• Blug, M., Leker, J., Plass, L., and Günther, A. 2014. “Methanol generation economics.” in Methanol: The Basic Chemical and Energy Feedstock of the Future: Asinger's Vision Today, edited by Springer. Springer VDI Verlag. doi: 10.1007/978-3-642-39709-7_7.
• Wosnitza, J., and Leker, J. 2014. “Why credit risk markets are predestined for exhibiting log-periodic power law structures.” Physica A: Statistical Mechanics and its Applications 393 (null): 427–449. doi: 10.1016/j.physa.2013.08.072.
• Zhu, Hangzi, Djurjagina, Katharina, and Leker, Jens. 2014. “Innovative behaviour types and their influence on individual crowdsourcing performances.” International Journal of Innovation Management 18 (6).
• Zhu, Hangzi, Djurjagina, Katharina, and Leker, Jens. 2014. “Innovative behaviour types and their influence on individual crowdsourcing performances.” contribution to the The XXV ISPIM Conference – Innovation for Sustainable Economy & Society, Dublin, Ireland
• Gelhard, C, Kortmann, S, and Leker, J. 2014. “A Contemporary View on Market Orientation and Innovativeness: The Mediating Role of Customer Co-Creation.” contribution to the XXV ISPIM Conference, Dublin
• Lecou, C., Sick, N., and Leker, J. 2014. “Selection Patterns in Front End Decision Making – Determining the Probability of Idea Progress within the Internal Innovation Process.” International Journal of Technology Marketing 9 (2): 101–124.
• Sick, Nathalie, Blug, Matthias, and Leker, Jens. 2014. “The Influence of Raw Material Prices on the Development of Hydrogen Storage Materials: The Case of Metal Hydrides.” Journal of the Knowledge Economy 5 (4): 735–760. doi: 10.1007/s13132-012-0132-5.

2013

• Eidam, Sebastian Meister Paul, and Kehrel, Uwe Leker Jens. 2013. “Collaboration and Scientific Output: Improving the Picture by Publication Analysis.” contribution to the International Society for Professional Innovation Management Conference 2013, Helsinki, Finland
• Leker, J. 2013. “With profit and value added tax.” Nachrichten aus der Chemie 61 (6): 615. doi: 10.1515/nachrchem.2013.61.6.615.
• Bauer, Manuel Leker Jens. 2013. “Exploration and exploitation in product and process innovation in the chemical industry.” R&D Management Journal 2013 (43 (3)): 196–212.
• Nicole, vom Stein, Sick, Nathalie, and Leker, Jens. 2013. “How to measure technological distance in collaborations? The case of electric mobility.” contribution to the PICMET '13 Conference "Technology Management in the IT-Driven Services", San Jose, California, USA
• Preschitschek, Nina Niemann Helen, and Möhrle, Martin G Leker Jens. 2013. “Anticipating industry convergence: Semantic analyses vs. IPC co-classification analyses of patents.” Foresight 15 (6): 446–464.
• Sick, N., and Golembiewski, B.and Leker J. 2013. “The influence of raw material prices on renewables diffusion.” Foresight 15 (6): 477–491.
• Golembiewski, B., and Sick, N.and Leker J. 2013. “Agriculture and energy industry in the setting of an emerging bioeconomy – Are there any signs of convergence on the horizon?” contribution to the PICMET '13 Conference "Technology Management in the IT-Driven Services", San Jose, California, USA
• Golembiewski, B., vom, Stein N., and Sick, N.and Leker J. 2013. “Enhancing patent analysis as measure for innovation - Evidence from electric mobility and the battery value chain.” contribution to the The XXIV ISPIM Conference – Innovating in Global Markets: Challenges for Sustainable Growth, Helsinki, Finland
• Wagner, R, Preschitschek, N, Passerini, S, Leker, J, and Winter, M. 2013. “Current research trends and prospects among the various materials and designs used in lithium-based batteries.” Journal of Applied Electrochemistry 43 (5): 481–496. doi: 10.1007/s10800-013-0533-6.

2012

• Gelhard, C, Kortmann, S, and Leker, J. 2012. “The Relationship between Cross-Functional Integration, Organizational Performance and Ambidextrous Mediators.” contribution to the XXIII ISPIM Conference, Barcelona
• von Delft Stephan, Leker Jens. 2012. “Technische Revolution und wirtschaftliche Reaktion.” Nachrichten aus der Chemie 60 (2): 143–146. doi: 10.1002/nadc.201290084.
• Leker, Jens Kehrel Uwe. 2012. “Wirtschaftschemiker, berufsbegleitend.” Nachrichten aus der Chemie 60: 196–197.
• Nienaber, A., Schewe, G., Holtorf, V., and Leker, J. 2012. “Initiative in teams in the front end of innovation: An empirical study about the success of structured and unstructured teams.” in Vol. null
• Von Delft, S., and Leker, J. 2012. “Chemical industry: Technical revolution and industrial reaction.” Nachrichten aus der Chemie 60 (2): 143–146. doi: 10.1002/nadc.201290084.
• Leker, Kehrel, Jens, and Uwe. 2012. “Wirtschaftschemiker, berufsbegleitend.” Nachrichten aus der Chemie 60 (2): 196–197. doi: 10.1002/nadc.201290108.
• Leker, Kehrel, Jens, and Uwe. 2012. “Economic Chemist, extra occupational.” Nachrichten aus der Chemie 60 (2): 196–197.
• Große Kathöfer David, Leker Jens. 2012. “Knowledge Transfer in Academia - An Exploratory Study on the Not-Invented-Here Syndrome.” The Journal of Technology Transfer 37 (5): 658–675. doi: 10.1007/s10961-010-9204-5.
• Everling, Oliver, Leker, Jens, and Bielmeier, Stefan, eds. 2012. Credit Analyst 2. edt. München: Oldenbourg Verlag.
• Kanzler, Steffen, Niedergassel, Benjamin, and Leker, Jens. 2012. “Knowledge sharing in academic R&D collaborations: does culture matter?” Journal of Chinese Entrepreneurship 4 (1): 6–19. doi: 10.1108/17561391211200902.
• Leker, Jens, Huizingh, Eelko, and Conn, Steffen. 2012. “Editorial.” International Journal of Technology Management 58 (3/4): 171–173.
• Sick, N., and Golembiewski, B.and Leker J. 2012. “The Influence of Raw Material Prices on the Diffusion of Renewable Energy Technologies.” contribution to the PICMET'12 Conference: "Technology Management for Emerging Technologies", Vancouver, Kanada
• Preschitschek, Nina, Leker, Jens, and Wiesemann, Frank. 2012. ECCH (European Case Clearing House), Case - Reference no. 312-014-1, Teaching note - Reference no. 312-014-8, Procter & Gamble: Pampers Germany: A brand under pressure
• Preschitschek, Nina Niemann Helen, and Möhrle, Martin G Leker Jens. in Kürze. “Semantic analyses vs. IPC co-classification analyses of patents: Which one better serves to anticipate converging industries?” contribution to the PICMET (Portland International Center for Management of Engineering and Technology) '12 Conference: "Technology Management for Emerging Technologies", Vancouver, Kanada
• Lecou, Christos, Sick, Nathalie, and Leker, Jens. 2012. “Selection Patterns in Front End Decision Making - Determining the Probability of Idea Progress within the Internal Innovation Process.” contribution to the XXIII ISPIM Conference – Action for Innovation: Innovating from Experience, Barcelona, Spanien
• Tiemann, Irina, Sick, Nathalie, and Leker, Jens. 2012. “Supplier involvement in customer new product development: new insights from the supplier’s perspective.” in Perspectives on Supplier Innovation, edited by Joe Tidd and Alexander Brem. London: Imperial College Press.

2011

• Niedergassel, B., Kanzler, S., Alvidrez, S., and Leker, J. 2011. “Cross-cultural perceptions on knowledge sharing in heterogeneous collaborations.” International Journal of Innovation Management 15 (3): 563–592. doi: 10.1142/S1363919611003441.
• Curran, Clive-Steven Leker Jens. 2011. “Patent indicators for monitoring convergence - examples from NFF and ICT.” Technological Forecasting and Social Change 78 (2): 256–273. doi: 10.1016/j.techfore.2010.06.021.
• Niedergassel, Benjamin, Leker, and Jens. 2011. “Different Dimensions of Knowledge in Cooperative R&D Projects of University Scientists.” Technovation 31 (4): 142–150. doi: 10.1016/j.technovation.2010.10.005.
• Kirchner, Martin Leker Jens. in Kürze. “Sustainability-oriented Innovations - A Long Way to Go.” contribution to the The XXII ISPIM Conference – Sustainability in Innovation: Innovation Management Challenges, Hamburg, Germany
• Kirchner, Martin Leker Jens. in Kürze. “Mirror, mirror on the wall, what is the most sustainable company of all? Assessing corporate sustainability performance by using the Corporate Sustainability Map.” contribution to the FFRC 13th Conference - Trends and Future of Sustainable Development, Tampere/Finland
• Lecou, Christos, Blug, Matthias, and Leker, Jens. in Kürze. “Gut feeling versus idea assessment - Evaluating ideas in the Front End of Innovation.” contribution to the 18th International Product Development Management Conference, Delft
• Klioutch, Irina Leker Jens. 2011. “Supplier involvement in customer new product development: new insights from the supplier's perspective.” International Journal of Innovation Management 15 (1): 231–248.
• Große Kathöfer David, Leker Jens. in Kürze. “The Not-Invented-Here Syndrome in Academia – How to Measure and Manage it.” contribution to the 12th European Conference on Knowledge Management (ECKM), Passau, Germany
• Preschitschek, Nina, Curran, Clive-Steven, and Leker, Jens. in Kürze. “The importance of access to resources in a setting of industry convergence – The case of agriculture and chemistry.” contribution to the PICMET (Portland International Center for Management of Engineering and Technology) '11 Conference: "Technology Management in the Energy-Smart World", Potland (OR), USA
• Niedergassel, Benjamin Kanzler Steffen, and Alvidrez, Salvador Leker Jens. 2011. “Cross-Cultural Perceptions on Knowledge Sharing in Heterogenous Collaborations.” International Journal of Innovation Management 15 (3): 563–592. doi: 10.1142/S1363919611003441.
• Bauer, Manuel Leker Jens. 2011. “Balanced innovation portfolio funding and its impact on new product performance.” contribution to the 18th International Product Development Management Conference – IPDMC, Delft, Netherlands
• Sick, Nathalie, Blug, Matthias, and Leker, Jens. 2011. “The influence of raw material prices on the development of hydrogen storage materials: The case of metal hydrides.” contribution to the PICMET (Portland International Center for Management of Engineering and Technology) '11 Conference: "Technology Management in the Energy-Smart World", Portland (OR), USA

2010

• Klioutch, Irina Leker Jens. 2010. “Supplier integration in the NPD process: new insights from the supplier’s perspective.” contribution to the 17th International Product Development Management Conference – “The Innovation in Crisis Time Murcia, Spanien.
• Sick, Nathalie Lecou Christos, and Wosnitza, Jan Leker Jens. 2010. “Assessing Technology Diffusion in Energy Markets. Moderating Effects of Raw Material Prices.” contribution to the The XXI ISPIM Conference – The Dynamics of Innovation Bilbao, Spanien.
• Kirchner, Martin, Lecou, Christos, and Leker, Jens. 2010. “The Corporate Sustainability Map – Initiating the Front End of Sustainable Innovation.” contribution to the The XXI ISPIM Conference – The Dynamics of Innovation, Bilbao, Spanien
• Preschitschek, Nina, Curran, Clive-Steven, and Leker, Jens. 2010. “Are Plastics turning Organic? Antecedents of Convergence in the Chemical Industry.” contribution to the The XXI ISPIM Conference – The Dynamics of Innovation Bilbao, Spanien.
• Curran, Clive-Steven, John, Gudrun M, and Leker, Jens. 2010. “Finding the Convergence-Needle in the Patent-Haystack.” contribution to the The 19th International Conference on Management of Technology – “Technology as the Foundation for Economic Growth" Kairo, Ägypten.
• Holtorf, Verena Leker Jens. 2010. “Creativity is not enough: Stimulating initiatives and risk-taking within front-end teams.” contribution to the The 19th International Conference on Management of Technology – “Technology as the Foundation for Economic Growth" Kairo, Ägypten.
• Leker, Jens Große Kathöfer David. 2010. “Tiny things being huge.” Journal of Business Chemistry 7 (1).
• Kortmann, Sebastian, Schwarzlose, Julia, and Leker, Jens. 2010. “The Influence of Integration Mechanisms on Organizational Ambidexterity.” contribution to the The XXIII ISPIM Conference, Barcelona
• Curran, Clive-Steven, Bröring, Stefanie, and Leker, Jens. 2010. “Anticipating converging industries using publicly available data.” Technological Forecasting & Social Change 77 (3): 385–395. doi: 10.1016/j.techfore.2009.10.002.
• Trustorff, Jan-Henning, Markus Konrad, Paul, and Leker, Jens. 2010. “Credit risk prediction using support vector machines.” Review of Quantitative Finance and Accounting online first: 1–17.
• Markus Konrad, Paul, and Leker, Jens. 2010. “Regulierung von Ratingagenturen, die DVFA als Plattform und Impulsgeber.” in Kapitalmarkt in Theorie und Praxis, edited by H.Rau Fritz and Merk Peter. Frankfurt: Fritz Knapp Verlag.
• Markus Konrad, Paul, and Leker, Jens. 2010. “Developments in Credit Rating Agency Regulation.” in Domestic and Foreign Credit Theory Studies and Standardization Practices, edited by Everling Oliver, Yin Yan and Ding Yusi. Beijing: China Metrology Publishing House.
• Herzog, Philipp Leker Jens. 2010. “Open and closed innovation - different innovation cultures for different strategies.” International Journal of Technology Management 52 (3-4): 322–343.

2009

• Niedergassel, Benjamin Leker Jens. 2009. “Open innovation: chances and challenges for the pharmaceutical industry.” Future Medicinal Chemistry 1 (7): 1197–1200. doi: 10.4155/fmc.09.107.
• Curran, Clive-Steven Leker Jens. 2009. “When Two Worlds Collide - Measuring Industry Convergence.” contribution to the 2009 Academy of Management (AOM) Annual Meeting – Green Management Matters Chicago (IL), USA.
• Curran, Clive-Steven Leker Jens. 2009. “Seeing the Next iPhone Coming Your Way: How to Anticipate Converging Industries.” contribution to the PICMET '09 Conference - Technology Management in the Age of Fundamental Changes Portland (OR), USA.
• Kirchner, Martin, Kanzler, Steffen, and Leker, Jens. 2009. “Corporate Sustainability Map - Measuring a Company's Sustainability in Order to Disclose Innovation Potential.” contribution to the R&D Management Conference Wien, Österreich.
• Niedergassel, Benjamin Leker Jens. 2009. “Collaborative R&D Projects: Differences between University-University and University-Industry Partnerships.” contribution to the The XX ISPIM Conference – The Future of Innovation Wien, Österreich.
• Kanzler, Steffen, Kirchner, Martin, and Leker, Jens. 2009. “Opening up the innovation process - a longitudinal research approach investigating the first Chinese-German research collaboration in Nano-Science.” contribution to the The XX ISPIM Conference – The Future of Innovation Wien, Österreich.
• Holtorf, Verena, Klioutch, Irina, and Leker, Jens. 2009. “The Influence of Teams on Entrepreneurial Orientation - Insights from Academia and Industry.” contribution to the The XX ISPIM Conference – The Future of Innovation Wien, Österreich.
• Große, Kathöfer D, and Leker, J. 2009. “Does the Ivory Tower become permeable? – The NIH Syndrome in Academia.” contribution to the The XX ISPIM Conference – The Future of Innovation Wien, Österreich.
• Curran, Clive-Steven Leker Jens. 2009. “Forecasting Industry Convergence: Developing Reliable Measures on the Basis of STN AnaVist.” contribution to the The XX ISPIM Conference – The Future of Innovation Wien, Österreich.
• Niedergassel, Benjamin Leker Jens. 2009. “Tacit and Explicit Knowledge Sharing in Collaborative R&D Projects.” contribution to the The 18th International Conference on Management of Technology (IAMOT) – Management of Green Technology Orlando (FL), USA.
• Holtorf, Verena Leker Jens. 2009. “Structured Teams and Corporate Entrepreneurship within the Fuzzy Front End.” contribution to the The 18th International Conference on Management of Technology (IAMOT) – Management of Green Technology Orlando (FL), USA.
• Leker, Jens Lecou Christos. 2009. “Forscher arbeiten an Materialien für Energieanwendungen.” Nachrichten aus der Chemie 57 (3): 357–358. doi: 10.1002/nadc.200963482.
• Curran, C‐S, and Leker, J. 2009. “Die Früherkennung konvergierender Industrien auf der Basis öffentlich zugänglicher Daten.” Chemie Ingenieur Technik 81 (8): 1232..
• Curran, C., and Leker, J. 2009. “Seeing the next iphone coming your way: How to anticipate converging industries.” contribution to the PICMET 2009 - 2009 Portland International Conference on Management of Engineering and Technology, Portland, OR, usa doi: 10.1109/PICMET.2009.5262190.
• Picker, S., Ruhnke, A., and Leker, J. 2009. “Developing knowledge management -what makes the success?” International Journal of Technology Management 45 (null): 380–389. doi: 10.1504/IJTM.2009.022660.
• Curran, Clive-Steven Leker Jens. 2009. “Employing STN AnaVist to Forecast Converging Industries.” International Journal of Innovation Management 13 (4): 637–664.
• Kehrel, Uwe, and Leker, Jens. 2009. “Unternehmenskrisen.” Zeitschrift für Führung und Organisation 78 (4): 200–205.
• Kehrel, Uwe, Leker, Jens, Mahlstedt, Dirk, and Trustorff, Jan-Henning. 2009. “Effekte der IFRS-Rechnungslegung auf das Bilanzrating.” Schmalenbachs Zeitschrift für betriebswirtschaftliche Forschung 61 (5): 283–309.
• Picker, Stefan Leker Jens. 2009. “Technology sourcing – how biotechnology cooperation works.” International Journal of Entrepreneurship and Innovation Management 10 (3/4): 342–352.
• Curran, Clive-Steven Niedergassel Benjamin, and Picker, Stefan Leker Jens. 2009. “Project leadership skills in cooperative projects.” Management Research News 32 (5): 458–468.
• Holtorf, Verena Leker Jens. 2009. “Corporate Entrepreneurship im Front End des Innovationsprozesses - Mehr Unternehmertum durch Struktur?” Zeitschrift für Führung und Organisation 78 (1): 54–61.
• Kirchner, Martin Klioutch Irina, and Kirchner, Gerald Leker Jens. 2009. “Die Entscheidung zum Projektabbruch im strukturierten Innovationsprozess am Beispiel eines Additivs zur Verbesserung der Haftung in ungesättigten Polyesterharzen.” in Fallstudien zum Innovationsmanagement, edited by HJ Fisch and J-M Roß. Wiesbaden.

2008

• van der Velde Andrea, Leker Jens. 2008. “Alte Ideen neu entdeckt.” Nachrichten aus der Chemie 56 (7-8): 773–775.
• Holtorf, Verena Leker Jens. 2008. “Structuring the Front End of the Innovation Process: What are the Drivers of Innovative Behavior?” contribution to the R&D Management Conference Ottawa, Kanada.
• Curran, Clive-Steven, Bröring, Stefanie, and Leker, Jens. 2008. “Patent Analysis for the Anticipation of Converging Industries.” contribution to the R&D Management Conference Ottawa, Kanada.
• Niedergassel, Benjamin Leker Jens. 2008. “Different Dimensions of Knowledge in Cooperative R&D Projects.” contribution to the R&D Management Conference Ottawa, Kanada.
• Holtorf, Verena Leker Jens. 2008. “Different structures, different attitudes: What drives individual entrepreneurial orientation?” contribution to the 19th ISPIM Conference Tours, Frankreich.
• Curran, Clive-Steven, Bröring, Stefanie, and Leker, Jens. 2008. “Using Publicly Available Data to Anticipate Converging Industries.” contribution to the 19th ISPIM Conference Tours, Frankreich.
• Niedergassel, Benjamin Leker Jens. 2008. “Tacit vs. Explicit - The Role of different Knowledge Dimensions in collaborative R&D Projects.” contribution to the 19th ISPIM Conference Tours, Frankreich.
• Everling, O, Holschuh, K, and Leker, J. 2008. Credit Analyst, edited by O Everling, K Holschuh and J Leker. München: Oldenbourg Verlag.
• Leker, Jens Kruse Michael. 2008. “Kennzahlensteuerung in der Spezialchemie.” in Einfachheit in Wirtschaftsinformatik und Controlling, edited by J. Becker. München: Verlag Franz Vahlen.
• Leker, Jens, Mahlstedt, Dirk, and Kehrel, Uwe. 2008. “Auswirkungen der IFRS-Rechnungslegungsumstellung auf das Jahresabschlussbild.” KoR 8 (6): 379–388.
• Van Der, Velde A., and Leker, J. 2008. “Rediscovery of old ideas Alte Ideen neu Entdeckt.” Nachrichten aus der Chemie 56: 773–775.

2007

• Leker, Jens. 2007. “Innovation Management - Trends in the Chemical Industry.” contribution to the Europäischer Kongress für die Prozessindustrie Frankfurt a. M., Deutschland.
• Leker, Jens. 2007. “Talentfindung durch neue Formen der Zusammenarbeit von Hochschulen und Unternehmen.” contribution to the Euroforum Spezialchemie Düsseldorf, Deutschland.
• Herzog, Philipp Leker Jens. 2007. “Open vs. Closed Innovation strategies: Also different innovation cultures?” contribution to the R&D Management Conference Bremen, Deutschland.
• Herzog, Philipp Leker Jens. 2007. “Open vs. Closed Innovation: Different cultures for different strategies.” contribution to the 18th ISPIM Conference Warschau, Polen.
• Leker, Jens. 2007. “Probleme empirischer Innovationsforschung - Ein Werkstattbericht.” contribution to the Karl-Franzens Universität Graz Graz, Österreich.
• Leker, Jens. 2007. “Krisenmanagement.” in Handwörterbuch der Betriebswirtschaftslehre, edited by R Köhler, H-U Küpper and A Pfingsten. Stuttgart: Schäffer-Poeschel Verlag.
• Bade, Martin, Herzog, Philipp, and Leker, Jens. 2007. “Marktorientiertes Innovationsmanagement.” in Immunoassays, edited by P. Rauch. München: Elsevier.
• Leker, J, Mahlstedt, D, and Duwe, K. 2007. “Status Quo und Entwicklungstendenzen interner Unternehmensberatungen.” in Consulting Research - Unternehmensberatung aus wissenschaftlicher Perspektive, edited by V. Nissen. Wiesbaden: Gabler Verlag.
• Lenk, Fabian Bröring Stefanie, and Herzog, Philipp Leker Jens. 2007. “On the usage of agricultural raw materials: Energy or food? An assessment from an economics perspective.” Biotechnology Journal 2 (12): 1497–1504.
• Niedergassel, Benjamin Curran Clive-Steven, and Leßing, Michael Leker Jens. 2007. “What drives partners in industry-academia cooperation? A special consideration of reducing uncertainty through computational chemistry.” International Journal of Technology Intelligence and Planning 3 (4): 331–342.
• Bröring, Stefanie Leker Jens. 2007. “Industry convergence and its implications for the Front End of innovation - a problem of absorptive capacity.” Creativity and Innovation Management 16 (2): 165–175.

2006

• Niedergassel, Benjamin, Herzog, Philipp, and Leker, Jens. 2006. “Knowledge Conversion in the Context of Open Innovation - An Example from the Chemical Industry.” contribution to the 3rd International Conference on Intellectual Capital, Knowledge Management and Organisational Learning Santiago de Chile, Chile.
• Leker, Jens. 2006. “Academic Education and Innovation - Innovation Management in Theory and Practice.” Research Triangle Park, NC, USA.
• Picker, Stefan, Niedergassel, Benjamin, and Leker, Jens. 2006. “Letter from the Editor: Interdisciplinarity at Work.” Journal of Business Chemistry 3 (2).
• Leker, Jens Scheffczyk Eva. 2006. “Fraktionierende Frühdiagnose von Unternehmenskrisen.” in Krisenmanagement, edited by Thomas Hutzschenreuter and Torsten Griess-Nega.
• Picker, Stefan Leker Jens. 2006. “Management in Biotechnology: Cooperation and Innovation.” contribution to the 28th ACHEMA Frankfurt a. M., Deutschland.
• Bröring, Stefanie, Leker, Jens, and Rühmer, Saskia. 2006. “Radical or not? Assessing innovativeness and its organisational implications for established firms.” International Journal of Product Development 3 (2): 152–166.
• Bröring, S, Cloutier, LM, and Leker, J. 2006. “The front end of innovation in an era of industry convergence: Evidence from nutraceuticals and functional foods.” R&D Management 36 (5): 487–498.

2005

• Leker, Jens. 2005. “Successful Innovation Management - Best Practice or Serendipity?” contribution to the Degussa meets Science 2005 Marl, Deutschland.
• Leker, Jens. 2005. “Strategien in der Chemischen Industrie.” contribution to the European School of Management and Technology München, Deutschland.
• Leker, Jens. 2005. “Innovationsstrategien bei unterschiedlichen Rahmenbedingungen.” contribution to the European School of Management and Technology München, Deutschland.
• Leker, Jens. 2005. “Innovation - New Constellations at Henkel KGaA.” Prag, Tschechien.
• Bröring, Stefanie Leker Jens. 2005. “Industry Convergence and its Implications for the Front End of Innovation – A Problem of Absorptive Capacity.” contribution to the The 12th International Product Development Management Conference Kopenhagen, Dänemark.
• Bröring, Stefanie Leker Jens. 2005. “Industriekonvergenz – Hindernis oder Chance für Innovation? Eine ressourcenbasierte Analyse der frühen Innovationsphase.” contribution to the 67. Wissenschaftliche Jahrestagung des Verbandes der Hochschullehrer für Betriebswirtschaft e.V. Kiel, Deutschland.
• Picker, Stefan, Vehring, Carsten, Hahn, Lars, Vala, Madeleine, and Leker, Jens. 2005. “Letter from the Editors: Why are scientists not managers!?” Journal of Business Chemistry 2 (1).
• Picker, S, Ruhnke, A, and Leker, J. 2005. “Knowledge Management - Factor of Success.” contribution to the 16th ISPIM Conference Porto, Portugal.
• Picker, Stefan Leker Jens. 2005. “Prospects and Innovation in Biotechnology: Bringing new technology to the market.” contribution to the CNIC Conference Havanna, Kuba.
• Leker, Jens Picker Stefan. 2005. “Developing a new field of Chemistry - Education in Business Chemistry.” contribution to the 40th IUPAC Conference Peking, China.
• Leker, Jens. 2005. “Der Unternehmer als Schuldner.” in Sanierung und Abwicklung in der Insolvenz, edited by T. Möhlmann-Mahlau. Herne/Berlin: NWB Verlag.
• Leker, Jens. 2005. “Misserfolgsanalyse in der Forschung zum strategischen Management.” in Management von Ad-hoc-Krisen, edited by M. Hülsmann. Wiesbaden: Gabler Verlag.
• Leker, Jens. 2005. “F&E Controlling.” in Handbuch Technologie- und Innovationsmanagement, edited by O. Gassmann. Wiesbaden: Gabler Verlag.

2004

• Bröring, S, Cloutier, LM, and Leker, J. 2004. “The Front End of Innovation in an Era of Industry Convergence – the case of nutraceuticals.” contribution to the R&D Management Conference Sesimbra, Portugal.
• Leker, J, Spahr, R, and Herzog, P. 2004. “Strategic change: Dynamic core competencies and firm performance.” contribution to the SAM/IFSAM VII World Congress Göteborg, Schweden.
• Bröring, S, Cloutier, LM, and Leker, J. 2004. “R&D in an era of convergence - are projects a set of dynamic relationships?” contribution to the The 20th European Group of Organization Studies Colloqium Ljubljana, Slowakei.
• Leker, Jens. 2004. “Innovationsmanagement - "Werkstattbericht" über aktuelle Projekte im Forschungsfeld Innovationsmanagement.” contribution to the Bayer AG Leverkusen, Deutschland.
• Bröring, Stefanie Leker Jens. 2004. “Decision Making in the Front End of Innovation on new Industry Segments - A conceptual framework.” contribution to the The 25th McMaster World Congress Hamilton, Kanada.
• Leker, Jens Rühmer Saskia. 2004. “Chemie und Betriebswirtschaftslehre.” in Wenn der Geist die Materie küsst, edited by K. Griesar. Frankfurt a. M.: Harri Deutsch.
• Leker, Jens Herzog Philipp. 2004. “Marketing in der chemischen Industrie.” in Handbuch Industriegütermarketing: Strategien – Instrumente - Anwendungen, edited by M. Voeth. Wiesbaden: Gabler Verlag.
• Leker, Jens Hamelau Nicole. 2004. “Einsatz strategischer Wettbewerbsanalysen im Controlling von Großunternehmen.” in Trendberichte zum Controlling, edited by M.B. Schulz. Heidelberg: Physica-Verlag.
• Leker, J, Diehl, U, and Wieben, HJ. 2004. “Ausbildung zum Certified Credit Analyst: Kompetenz durch Qualifizierung.” in Handbuch Ratingpraxis, edited by O. Everling. Wiesbaden: Gabler Verlag.
• Leker, Jens. 2004. “Gründungsbilanzen.” in Sonderbilanzen, edited by K.-R. Veit. Herne/Berlin: NWB Verlag.
• Mahlstedt, Dirk Leker Jens. 2004. “Praxis der bilanziellen Krisendiagnose - geeignete Indikatoren zum Selbst-Check und zur Kundenbetreuung.” Bilanzbuchhalter und Controller 28 (5): 101–104.

2003

• Bröring, Stefanie, Vehring, Carsten, and Leker, Jens. 2003. “New Competences for a new market - The Case of the Emerging Nutraceuticals and Functional Foods Sector.” contribution to the The 23rd annual international conference of the Strategic Management Society Baltimore, USA.
• Leker, Jens Rühmer Saskia. 2003. “Der Einfluss von Wertschöpfungsnetzwerken auf das Innovationsmanagement der chemischen Industrie.” in Geschäftsmodelle für Wertschöpfungsnetzwerke, Festschrift für Winfried Krüger, edited by B. Eichler. Wiesbaden: Gabler Verlag.

2002

• Leker, J, Möhlmann-Mahlau, T, and Wieben, HJ. 2002. Risikomanagement vor und in der Insolvenz Recklinghausen: ZAP Verlag.
• Leker, J, Daniels, HV, and Seeliger, CW. 2002. “Corporate Venture Capital - der Weg zur erfolgreichen Erschließung neuer Technologien?” Perspektiven der Wirtschaftspolitik 3 (3): 303–316.

2001

• Leker, J, and Spahr, R. 2001. “Strategic Change Accompanied by Shift of Core Competencies: A Study of Growth and Performance Effects.” contribution to the 2001 Globalization Conference – Cross-Border Business Combinations and Strategic Alliances of the Schmalenbach-Gesellschaft für Betriebswirtschaft and the American Accounting Association Berlin, Deutschland.
• Leker, Jens. 2001. “Die Neuausrichtung der Unternehmensstrategie – Erfahrungen und Ergebnisse eines empirischen Forschungsprojektes.” contribution to the Justus-Liebig-Universität Gießen Gießen, Deutschland.
• Leker, Jens. 2001. “Reorientation in a Competitive Environment: An Analysis of Strategic Change.” Schmalenbach Business Review 53: 41–55.
• Leker, J, Festel, G, and Hassan, A. 2001. Betriebswirtschaftslehre für Chemiker - Eine praxisorientierte Einführung, edited by J Leker, G Festel, A Hassan and P Bamelis. Berlin et al.: Springer VDI Verlag.
• Leker, Jens. 2001. “Bilanzratingsysteme zwischen Theorie und Praxis.” in Außergewöhnliche Entscheidungen, edited by H.G. Gemünden. München: Verlag Franz Vahlen.
• Leker, Jens. 2001. “Strategie.” in Betriebswirtschaftslehre für Chemiker - Eine praxisorientierte Einführung, edited by J Leker, G Festel, A Hassan and P Bamelis. Berlin et al.: Springer VDI Verlag.
• Hauschildt, Jürgen Leker Jens. 2001. “Kreditwürdigkeitsprüfung, inkl. automatisierte.” in Handwörterbuch des Bank- und Finanzwesens, edited by M. Steiner. Stuttgart: Schäffer-Poeschel Verlag.

2000

• Leker, J, and Salomo, S. 2000. “CEO turnover and corporate performance.” Scandinavian Journal of Management, № 16: 287–303.

1998

• Leker, Jens Salomo Sören. 1998. “Die Veränderung der wirtschaftlichen Lage im Verlauf eines Wechsels an der Unternehmensspitze.” Schmalenbachs Zeitschrift für betriebswirtschaftliche Forschung 2.
• Leker, Jens Schewe Gerhard. 1998. “Beurteilung des Kreditausfallrisikos im Firmenkundengeschàft der Banken.” Schmalenbachs Zeitschrift für betriebswirtschaftliche Forschung 50 (10): 877–891..