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- Language: German, English
- Year: 1998

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- Language: English
- Year: 2015

- Author: Georgios P. Tsomis
- Language: German
- Year: 2018

- Author: Hedwig Schmalzgruber
- Language: German
- Year: 2016

- Author: Bruno Vancamp (editor)
- Language: German
- Year: 1996

- Author: Anika Strobach
- Language: German
- Year: 1997

- Author: Bernhard Koch
- Language: German
- Year: 2010

- Author: Friedrich Meins
- Language: German
- Year: 2018