- Author: Wilhelm Spiegelberg
- Language: German
- Year: 1923
- Author: Kurt Sethe
- Language: German
- Year: 1922
- Author: Friedrich Preisigke
- Language: German
- Year: 1921
- Author: Paul Viereck
- Language: German
- Year: 1923
- Author: Johannes Hasebroek
- Language: German
- Year: 1922
- Author: Friedrich Preisigke
- Language: German
- Year: 1923
- Author: Volker Dotterweich
- Language: German
- Year: 1978
- Author: Kurt Sethe
- Language: German
- Year: 1921