@book{Liebers2001,
  author    = {Klaus Liebers},
  title     = {Physik : Kl. 7, [Hauptbd.], Regelschule Th{\"u}ringen},
  editor    = {Helmut Mikelskis and Hans-Joachim Wilke},
  isbn      = {3-06-020736-4},
  year      = {2001},
}