@book{BricksBuetowHerzigetal.1997,
  author    = {Wolfgang Bricks and Heike B{\"u}tow and Reinhard Herzig and Wolfgang Markert and J{\"u}rgen Meißgeier and Kurt-Dietmar Schmidtke},
  title     = {Seydlitz Erdkunde 1 : Kl. 5 bzw. 5/6, Arbeitsheft, Sekundarstufe 1 Brandenburg, Mecklenburg-Vorpommern, Sachsen- Anhalt, Th{\"u}ringen, Berlin},
  isbn      = {3-5075-2511-9},
  year      = {1997},
}