- Author: Gottfried Wentz (ed.)
- Language: German
- Year: 1941
- Author: Otto J. Maenchen-Helfen
- Language: German
- Year: 1978
- Author: Hans-Joachim Diesner
- Language: German
- Year: 1964
- Author: Herbert Jankuhn
- Language: German
- Year: 1971
- Author: Klaus-Peter Matschke
- Language: German
- Year: 1981