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Book
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Published: Frankfurt am Main : Röderberg-Verl, 1978
Book
5
Published: Köln : Röderberg im Pahl-Rugenstein Verl, 1988
Book
6
Published: Stuttgart : Theodor-Heuss-Stiftung, 2006
Book
7
Published: Köln : PapyRossa Verl, 1998
Book
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Book
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