Kahrmann, Cordula, author
Athenaum, 1986
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Fischer, Watther, author
Heidelberg Carl Winter's Universitatsbuchhandlung 1921
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Brandenstein, Wilhelm, author
Gerold, 1950
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Eco, Umberto, author
Suhrkamp, 1973
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Kaminski, Winfred
Weinheim und Munchen Juventa 1998
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