- Author: Professor Dr. Hermann Triepel (auth.)
- Language: German
- Year: 1927
- Author: Professor Dr. Hermann Triepel (auth.)
- Language: German
- Year: 1957
- Author: Professor Dr. Hermann Triepel (auth.)
- Language: German
- Year: 1922
- Author: Professor Dr. Hermann Triepel (auth.)
- Language: German
- Year: 1927
- Author: Professor Dr. Hermann Triepel (auth.)
- Language: German
- Year: 1957