- Author: Steiner Peter
- Language: German
- Year: 1997
- Author: Schulte Stephan
- Language: German
- Year: 1996
- Author: Schubert Mathias
- Language: German
- Year: 1984
- Author: Schenek Matthias
- Language: German
- Year: 1995
- Author: Rohde Armin
- Language: German
- Year: 1996
- Author: Rinke Claudia
- Language: German
- Year: 2002
- Author: Rheineck Burkhard
- Language: German
- Year: 1979