- Author: Robert Koldewey
- Language: German
- Year: 1932
![book Baltische Geheimnisse. Ein Beitrag zur Sittengeschichte Lieflands [Livlands]](/covers/files_170/3933000/1cac98cb8060915f740bae34ecb2db5e-g.jpg)
- Author: E F Schultz
- Language: German
- Year: 1857
- Author: Wilhelm Rüstow
- Language: German
- Year: 1858
- Author: Wilhelm Rüstow
- Language: German
- Year: 1859
- Author: Otto Zeller
- Language: German
- Year: 1959
- Author: Léon Walras
- Language: French
- Year: 1964
- Author: Muḥammad ibn Mūsá Khuwārizmī (auth) Kurt Vogel (ed.)
- Language: Latin
- Year: 1963
- Author: Wilhelm Rüstow
- Language: German
- Year: 1865
- Author: G. J. Ramstedt
- Language: German
- Year: 1968
