1
Published: Münster ; München : Unrast, 2002
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2
Published: Berlin [u.a.] : Dietz, 1988
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7
Published: Duisburg : DISS, 1998.
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8
Published: Essen : Klartext-Verl, 1990.
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Published: Tübingen : Hohenrain, 1999.
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