1
Published: Frankfurt am Main : Röderberg, 1981
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2
Book
3
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5
Published: Bern ; München : Francke
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6
Published: Bern : Francke
Bern ; München
Berlin
Bern ; München
Berlin
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7
Published: Berlin : Bostelmann & Siebenhaar, 2002
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8
9
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10
11
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12
Book
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15
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