@article{BuetowBuetowKugleretal.1994,
  author    = {Heike B{\"u}tow and Martin B{\"u}tow and Eberhard Kugler and Wolfgang Markert and J{\"u}rgen Meißgeier},
  title     = {Seydlitz Erdkunde 3 : Gymnasium ; Ausgabe E},
  editor    = {Gert Jahn},
  year      = {1994},
}