@book{Liebers2002,
  author    = {Klaus Liebers},
  title     = {Physik : Kl. 9/10, Lehrerbd., Mittelschule Sachsen},
  editor    = {Helmut Mikelskis and Hans-Joachim Wilke},
  isbn      = {3-06-022234-7},
  year      = {2002},
}