- Author: Harald Roth
- Language: German
- Year: 2012
- Author: Harald Roth
- Language: German
- Year: 2010
- Author: Harald Roth
- Language: German
- Year: 2007
- Author: Harald Roth
- Language: German
- Year: 2007
- Author: Harald Roth, Konrad Gündisch
- Language: German
- Year: 2010