@article{Her13a,
  author   = {M.~Herrmann},
  title    = {Ground waves in atomic chains with bi-monomial double-well potential},
  journal  = {Nonlinear Anal.-Theory Methods Appl.},
  volume   = {76},
  number = {1},
  pages    = {41--51},
  year     = {2013},
  doi      = {10.1016/j.na.2012.07.013}
}