- Author: Dr.-Ing. Johannes Looman (auth.)
- Language: German
- Year: 1996
- Author: Dr.-Ing. Johannes Looman (auth.)
- Language: German
- Year: 1988
- Author: Dr.-Ing. Johannes Looman (auth.)
- Language: German
- Year: 1970
- Author: Dr.-Ing. Johannes Looman (auth.)
- Language: German
- Year: 1996