- Author: Michael Stolz (editor), Adrian Mettauer (editor), Yvonne Dellsperger (editor), André Schnyder (editor)
- Language: German
- Year: 2006
- Author: Reto Sorg, Adrian Mettauer, Wolfgang Pross
- Language: German
- Year: 2003
- Author: Michael Stolz Adrian Mettauer
- Language: German
- Year: 2005