- Author: Hobe Stephan
- Language: German
- Year: 1992
- Author: Hobe Stephan
- Language: German
- Year: 1997
- Author: Dicke Klaus, Hobe Stephan, Meyn Karl-Ulrich, Peters Anne, Riedel Eibe, Schütz Hans-Joachim, Tietje Christian
- Language: German
- Year: 2005
- Author: Delbrück Jost, Dicke Klaus, Hobe Stephan, Meyn Klaus-Ulrich, Riedel Eibe, Schütz Hans-Joachim
- Language: German
- Year: 1996