
- Author: Professor Dr. Hans-Christian Pfohl (auth.)
- Language: German
- Year: 1996

- Author: Professor Dr. Hans-Christian Pfohl (auth.)
- Language: German
- Year: 1990

- Author: Professor Dr. Hans-Christian Pfohl (auth.)
- Language: German
- Year: 1988

- Author: Professor Dr. Hans-Christian Pfohl (auth.)
- Language: German
- Year: 1985