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Published: Essen : Klartext, 2001
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2
Published: Frankfurt am Main : Haag + Herchen, 1994.
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3
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6
Published: München : Schobert, 1986.
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10
Published: Stuttgart : Kreuz-Verl, 1961.
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13
Published: Chico, Calif. : Scholars Press, 1985.
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