- Author: Hans Stüdemann Hans-Volkert Lange Rudolf Grube
- Language: German
- Year: 1970
- Author: Franz Lotze
- Language: German
- Year: 1965
- Author: Ulrich Buskies
- Language: German
- Year: 1970
- Author: Wilhelm Anton Fischer
- Language: German
- Year: 1970
- Author: Herwart Opitz
- Language: German
- Year: 1971
- Author: Peter Wiemer Horst Glinka
- Language: German
- Year: 1970