S. Leweling, Convincing online consumers to purchase: Empirical studies on online advertising, mobile advertising, user generated content and social shopping tools, vol. Band 15. Münster: TESTINSTANZ: Wissenschaftliche Schriften der Universität Münster, 2018. Accessed: May 07, 2026. [Online]. Available: https://www.uni-muenster.de/EbooksTestInstallation/index.php/series/catalog/book/150