@article{BroscheitBuetowGehrkeetal.1994,
  author    = {Broscheit, Frank and B{\"u}tow, Heike and Gehrke, Albrecht and Jahn, Gert and J{\"u}rgens, Christoph and Kißner, Karl-Heinz and Klohn, Werner and Knitschky, Wolfgang and Mager, Franz-Peter and Maier, Klaus and M{\"u}hlberger, Wolfgang and M{\"u}lders, Wolfgang and Rappen-R{\"o}hlen, Beate and Reinhardt, Karl Heinz and Schmidt, Marianne and Schmidtke, Kurt-Dietmar and Volkmann, Hartmut and Wetzel, J{\"u}rgen},
  title     = {Seydlitz Erdkunde 1 : Ausgabe f{\"u}r Realschulen in Nordrhein-Westfalen},
  publisher = {Schroedel},
  address   = {Hannover},
  pages     = {176 S.},
  year      = {1994},
  language  = {de}
}
@article{BuetowBuetowKugleretal.1994,
  author    = {B{\"u}tow, Heike and B{\"u}tow, Martin and Kugler, Eberhard and Markert, Wolfgang and Meißgeier, J{\"u}rgen},
  title     = {Seydlitz Erdkunde 3 : Ausgabe E},
  editor    = {Jahn, Gert},
  publisher = {Schroedel},
  address   = {Hannover},
  pages     = {224 S.},
  year      = {1994},
  language  = {de}
}
@article{BricksBuetowMarkertetal.1994,
  author    = {Bricks, Wolfgang and B{\"u}tow, Heike and Markert, Wolfgang and Meißgeier, J{\"u}rgen and Schmidtke, Kurt-Dietmar},
  title     = {Seydlitz Erdkunde 1 : Lehrerband},
  editor    = {Jahn, Gert},
  publisher = {Schroedel},
  address   = {Hannover},
  pages     = {198 S.},
  year      = {1994},
  language  = {de}
}
@article{BuetowBuetowKugleretal.1994,
  author    = {B{\"u}tow, Heike and B{\"u}tow, Martin and Kugler, Eberhard and Markert, Wolfgang and Meißgeier, J{\"u}rgen},
  title     = {Seydlitz Erdkunde 3 : Gymnasium ; Ausgabe E},
  editor    = {Jahn, Gert},
  publisher = {Schroedel},
  address   = {Hannover},
  pages     = {256 S.},
  year      = {1994},
  language  = {de}
}
@article{BuetowBuetowGartenetal.1995,
  author    = {B{\"u}tow, Heike and B{\"u}tow, Martin and Garten, Gerd and Meier, Uwe and Meißgeier, J{\"u}rgen},
  title     = {Seydlitz Erdkunde 4 : Gymnasium Sachsen},
  editor    = {Jahn, Gert},
  publisher = {Schroedel},
  address   = {Hannover},
  pages     = {96 S.},
  year      = {1995},
  language  = {de}
}
@article{BricksBuetowBuetowetal.1995,
  author    = {Bricks, Wolfgang and B{\"u}tow, Heike and B{\"u}tow, Martin and Garten, Gerd and Markert, Wolfgang and Meier, Uwe and Meißgeier, J{\"u}rgen},
  title     = {Seydlitz Erdkunde 4 : Ausgabe Th{\"u}ringen},
  editor    = {Jahn, Gert},
  publisher = {Schroedel},
  address   = {Hannover},
  pages     = {192 S.},
  year      = {1995},
  language  = {de}
}
@article{BuetowBuetowFelberetal.1995,
  author    = {B{\"u}tow, Heike and B{\"u}tow, Martin and Felber, Elke and Garten, Gerd and Meier, Uwe and Meißgeier, J{\"u}rgen and Oelschl{\"a}gel, Frank},
  title     = {Seydlitz Erdkunde : Kl. 10-12, Lehrerband, Sachsen},
  editor    = {Jahn, Gert},
  publisher = {Schroedel},
  address   = {Hannover},
  pages     = {176 S.},
  year      = {1995},
  language  = {de}
}
@article{BuetowBuetowGartenetal.1995,
  author    = {B{\"u}tow, Heike and B{\"u}tow, Martin and Garten, Gerd and Markert, Wolfgang and Meier, Uwe and Meißgeier, J{\"u}rgen},
  title     = {Seydlitz Erdkunde 4 : Gymnasium},
  editor    = {Jahn, Gert},
  publisher = {Schroedel},
  address   = {Hannover},
  pages     = {192 S.},
  year      = {1995},
  language  = {de}
}
@article{BuetowBuetowGartenetal.1995,
  author    = {B{\"u}tow, Heike and B{\"u}tow, Martin and Garten, Gerd and Markert, Wolfgang and Meier, Uwe and Meißgeier, J{\"u}rgen},
  title     = {Seydlitz Erdkunde 4 : Ausgabe E},
  editor    = {Jahn, Gert},
  publisher = {Schroedel},
  address   = {Hannover},
  pages     = {192 S.},
  year      = {1995},
  language  = {de}
}
@article{BuetowBuetowGartenetal.1996,
  author    = {B{\"u}tow, Heike and B{\"u}tow, Martin and Garten, Gerd and Markert, Wolfgang and Meier, Uwe and Meißgeier, J{\"u}rgen},
  title     = {Seydlitz Erdkunde 4 : Ausgabe E},
  editor    = {Jahn, Gert},
  publisher = {Schroedel},
  address   = {Hannover},
  year      = {1996},
  language  = {de}
}