- Author: Dr. Josef Löffelholz (auth.)
- Language: German
- Year: 1971
- Author: Dr. Josef Löffelholz (auth.)
- Language: German
- Year: 1980
- Author: Dr. Josef Löffelholz (auth.)
- Language: German
- Year: 1993
- Author: Dr. Josef Löffelholz (auth.)
- Language: German
- Year: 1993
- Author: Dr. Josef Löffelholz (auth.)
- Language: German
- Year: 1993
- Author: Dr. Josef Löffelholz (auth.)
- Language: German
- Year: 1966