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- Language: German
- Year: 2010
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- Year: 1989
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- Year: 2011
- Author: Curt Fentsterbusch
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- Year: 1964
- Author: Klaus-Michael Mallmann Gerhard Paul (eds.)
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- Year: 2013
- Author: Jochen Schmidt
- Language: German
- Year: 2011
- Author: Madeleine Herren
- Language: German
- Year: 2009
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- Year: 1979
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- Year: 2001
