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- Language: German
- Year: 2011
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- Year: 2011
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- Language: German
- Year: 2012
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- Year: 2010
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- Year: 1993
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- Language: German
- Year: 1981
- Author: Harald Schultze
- Language: German
- Year: 2005
- Author: Wilhelm Bousset
- Language: German
- Year: 1973