- Author: Achim Aurnhammer (editor), Wolfgang Braungart (editor), Stefan Breuer (editor), Ute Oelmann (editor), Kai Kauffmann (editor)
- Language: German
- Year: 2015
- Author: Achim Aurnhammer (editor), Wolfgang Braungart (editor), Stefan Breuer (editor), Ute Oelmann (editor), Kai Kauffmann (editor)
- Language: German
- Year: 2015
- Author: Matthias Buschmeier (editor), Walter Erhart (editor), Kai Kauffmann (editor)
- Language: German
- Year: 2014
- Author: Matthias Buschmeier (editor), Walter Erhart (editor), Kai Kauffmann (editor)
- Language: German
- Year: 2014