- Author: Johannes Geffcken (editor)
- Language: German
- Year: 1902
- Author: Adamantius (author), W. H. van de Sande Bakhuyzen (editor)
- Language: German
- Year: 1901
- Author: Gerhard Loeschke Margaret Heinemann
- Language: German
- Year: 1918
- Author: Paul Wendland
- Language: German
- Year: 1916
Methodius
pdf
- Author: Georg Nathanael Bonwetsch
- Language: German
- Year: 1917
- Author: Paul Koetschau
- Language: German
- Year: 1913
- Author: Ivar A. Heikel
- Language: German
- Year: 1913
- Author: Rudolf Helm
- Language: German
- Year: 1913