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2
Book
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4
Book
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6
7
Published: Frankfurt am Main u.a. : Lang, 1988
Book
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9
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Book
11
Published: Hannover : Hahn, 1995
Book
12
Published: Würzburg : Königshausen & Neumann, 1989.
Book
13
Published: Köln : Verl. Wiss. u. Politik, 1986.
Book
14
15
Published: Münster : Westfälisches Dampfboot, 1999.
Book
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19
Published: Duisburg : DISS, 1994
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