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- Language: German
- Year: 2009
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- Author: Ute Planert
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- Year: 1998
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- Language: German
- Year: 1997
- Author: Takashi Onuki
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- Year: 1989
- Author: Gunther Wenz
- Language: German
- Year: 2011
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- Year: 1996
- Author: Karin Hausen
- Language: German
- Year: 2013
- Author: Kurt Appel, Isabella Guanzini, Angelika Walser
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- Year: 2014
