- Author: ca. 1120-ca. 1177 Helmold Francis Joseph Tschan
- Language: English
- Year: 1966
- Author: von Bremen Adam Francis Joseph Tschan
- Language: English
- Year: 1959
- Author: Adam of Bremen, Francis Joseph Tschan, Timothy Reuter
- Language: English
- Year: 2002
- Author: Helmold, Francis Joseph Tschan, Austin P. Evans
- Language: English
- Year: 1935
- Author: Helmond of Bosau Francis Joseph Tschan
- Language: English
- Year: 1966