- Author: Professor Dr. Helmut Prinz Dr. Roland Strauß (auth.)
- Language: German
- Year: 2011
- Author: Helmut Prinz, Roland Strauss
- Language: German
- Year: 2011
- Author: Helmut Prinz Roland Strauß
- Language: German
- Year: 2011
- Author: Helmut Prinz Roland Strauß
- Language: German
- Year: 2011