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Published: Münster ; München : Unrast, 2002
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Published: Hamburg : VSA-Verl, 1993.
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Published: Duisburg : DISS, 1998.
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Published: Tübingen : Hohenrain, 1999.
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Published: Köln : Pahl-Rugenstein, 1989
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Published: Opladen : Westdt. Verl, 1994
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