- Author: Heinz-Dietrich Fischer (editor)
- Language: German
- Year: 1973
- Author: Heinz-Dietrich Fischer (editor)
- Language: German
- Year: 1972
- Author: Heinz Dietrich Fischer (ed.)
- Language: German
- Year: 1972
- Author: Heinz Dietrich Fischer (ed.)
- Language: German
- Year: 1973