- Author: Kai Merten (editor), Claus-Michael Ort (editor)
- Language: German
- Year: 2021
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- Language: German
- Year: 2021
- Author: Yvonne Al-Taie (editor), Bernd Auerochs (editor), Anna-Margaretha Horatschek (editor)
- Language: German
- Year: 2015