- Author: Friedrich Balke (editor), Gregor Schwering (editor), Urs Stäheli (editor)
- Language: German
- Year: 2015
- Author: Friedrich Balke (editor), Marc Rölli (editor)
- Language: German
- Year: 2015
- Author: Friedrich Balke (editor), Gregor Schwering (editor), Urs Stäheli (editor)
- Language: German
- Year: 2015