- Author: Eva von Contzen (editor), Tobias Huff (editor), Peter Itzen (editor)
- Language: German
- Year: 2018
- Author: Eva von Contzen (editor), Florian Kragl (editor)
- Language: German
- Year: 2018
- Author: Eva von Contzen (editor), Florian Kragl (editor)
- Language: German
- Year: 2018