- Author: Andreas Heusler (editor), Stefan Sonderegger (editor)
- Language: German
- Year: 1970
- Author: Emil Luginbühl, Stefan Sonderegger
- Language: German
- Year: 1970
- Author: Stefan Sonderegger (editor)
- Language: German
- Year: 1969
- Author: Stefan Sonderegger
- Language: German
- Year: 1974
- Author: Stefan Sonderegger
- Language: German
- Year: 2003
- Author: Werner Besch (editor), Anne Betten (editor), Oskar Reichmann (editor), Stefan Sonderegger (editor)
- Language: German
- Year: 2004