- Author: Alexej Stykow
- Language: German
- Year: 1991
- Author: Wolf Oschlies
- Language: German
- Year: 1983
- Author: Eva-Maria Auch
- Language: German
- Year: 1992
- Author: Gerhard Wettig
- Language: German
- Year: 1978
- Author: Ole Diehl Anton Krakau
- Language: German
- Year: 1988
- Author: Gerhard Wettig
- Language: German
- Year: 1985
- Author: Gerhard Wettig
- Language: German
- Year: 1971
- Author: Stephan Kux
- Language: German
- Year: 1990