- Author: Schmale Wolfgang
- Language: German
- Year: 1988
- Author: Schilling Lothar
- Language: German
- Year: 1994
- Author: Real Willy
- Language: German
- Year: 1990
- Author: Pörtner Regina
- Language: German
- Year: 2009
- Author: Pyta Wolfram, Richter Ludwig
- Language: German
- Year: 1998