2
Book
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4
Published: Mannheim : v. Brandt, 1991.
Book
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Book
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7
Book
8
Published: Berlin u.a. : Aufbau-Verl, 1990.
Book
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Book
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Book
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12
13
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16
Published: Villingen-Schwenningen : Neckar-Verl, 1989.
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Published: Konstanz : Hartung-Gorre, 1990.
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