- Author: Breen Michael
- Language: English
- Year: 2004
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- Language: German
- Year: 2015
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- Language: German
- Year: 2016
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- Year: 2016
- Author: Franck Madeleine, Franck Rolf C
- Language: German
- Year: 2011
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- Language: German
- Year: 2017
- Author: Gräfe und Unzer, Ludwig Gerd
- Language: German
- Year: 2016
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- Year: 2017
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- Year: 2016
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- Year: 2017