- Author: Wolfram Ax
- Language: German
- Year: 2005
- Author: Wolfram Ax
- Year: 1986
- Author: Wolfram Ax Farouk Grewing
- Language: German, English
- Year: 2000
- Author: Wolfram Ax
- Language: German, Latin
- Year: 2011
- Author: Wolfram Ax
- Language: German
- Year: 1986
- Author: Wolfram Ax
- Language: German
- Year: 2011