- Author: Hermann Jellinghaus (editor), Hermann Paul (editor), Werner Betz (editor)
- Language: German
- Year: 1925
- Author: Hans Naumann, Werner Betz
- Language: German
- Year: 1967
- Author: Hans Naumann, Werner Betz
- Language: German
- Year: 1954
- Author: Hans Naumann, Werner Betz
- Language: German
- Year: 1962