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Published: Bonn : Forschungsinst. der Friedrich-Ebert-Stiftung, Abt. Arbeits- und Sozialforschung, 1992.
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Published: Stuttgart : Enke, 1995.
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Published: Baden-Baden : Nomos-Verl.-Ges, 1987.
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Published: Ostfildern-Ruit : Cantz, 1999.
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Published: Osnabrück : fibre, 2001
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