- Author: Oliver Auge (editor), Christiane Witthöft (editor)
- Language: German
- Year: 2016
- Author: Oliver Auge (editor), Christiane Witthöft (editor)
- Language: German
- Year: 2016
- Author: Udo Friedrich (editor), Andreas Hammer (editor), Christiane Witthöft (editor)
- Language: German
- Year: 2013