@book{BricksBuetowBuetowetal.2000,
  author    = {Wolfgang Bricks and Heike B{\"u}tow and Martin B{\"u}tow and Reinhard Herzig and Frank Morgeneyer and M. Untisz},
  title     = {Seydlitz Geographie 10 : Arbeitsheft, Gymnasium Sachsen},
  isbn      = {3-507-52529-1},
  year      = {2000},
}