- Author: Andreas Büttner, Birgi Kynast, Gerald Schwedler, Jörg Sonntag
- Language: German
- Year: 2017
- Author: Jörg Sonntag (editor)
- Language: German, French, English, Italian
- Year: 2017
- Author: Jörg Sonntag, Coralie Zermatten
- Language: English
- Year: 2015
- Author: Jörg Sonntag (ed.)
- Language: German
- Year: 2013