- Author: Schenk Karl-Ernst
- Language: German
- Year: 1978
- Author: Schenk Karl-Ernst
- Language: German
- Year: 1980
- Author: Schefold Bertram
- Language: German
- Year: 1990
- Author: Schefold Bertram
- Language: German
- Year: 1989
- Author: Schefold Bertram
- Language: German
- Year: 1989
- Author: Sautter Hermann
- Language: German
- Year: 1993
- Author: Sautter Hermann
- Language: German
- Year: 1991