@book{BricksBuetowHerzigetal.1999,
  author    = {Wolfgang Bricks and Heike B{\"u}tow and Reinhard Herzig and Gert Jahn and Wolfgang Markert and J{\"u}rgen Meißgeier},
  title     = {Seydlitz Erdkunde 4 : Kl. 9/10 Mittelschule, Sekundarstufe 1 Sachsen, Sachsen-Anhalt},
  isbn      = {3-507-52528-3},
  year      = {1999},
}