@book{Liebers1999,
  author    = {Liebers, Klaus},
  title     = {Physik plus : Kl. 7/8, [Hauptbd.], Sek. 1 Sachsen},
  editor    = {Mikelskis, Helmut and Wilke, Hans-Joachim},
  publisher = {Volk-und-Wissen-Verl.},
  address   = {Berlin},
  isbn      = {3-06-020741-0},
  pages     = {216 S.},
  year      = {1999},
  language  = {de}
}