- Author: Riemann Randolf, Reineke Ulf
- Language: German
- Year: 2007
- Author: Brusis Tilman, Feldmann Harald
- Language: German
- Year: 2006
- Author: Behrbohm Hans, Kaschke Oliver, Nawka Tadeus
- Language: German
- Year: 2009
- Author: Ganzer Uwe, Arnold Wolfgang
- Language: German
- Year: 2005
- Author: Reiss Michael
- Language: German
- Year: 2009