- Author: B. Allemann M. Bitzer U. Claus H. Frey M. Lüthi R. Meury P. Wörfel (auth.)
- Language: German
- Year: 1977
- Author: Tom Bitzer (auth.)
- Language: English
- Year: 1997
- Author: Frank Bitzer Klaus M. Brisch (auth.)
- Language: German
- Year: 1999
