- Author: Künnap Ago.
- Language: English
- Author: Лыткин В.И. Майтинская К.Е. Редеи К.
- Language: Русский
- Year: 1976
- Author: Torbjörn Söder
- Language: English
- Year: 2001
- Author: Лыткин В.И. Майтинская К.Е. Редеи К.
- Language: Русский
- Year: 1974
- Author: Карпова Л.Л.
- Language: Русский
- Year: 2005
- Author: Егоров А. В.
- Language: Русский
- Year: 2011
- Author: Сергей Константинович Белых
- Language: Русский
- Year: 2009
- Author: Björn Collinder
- Language: English
- Year: 1969
- Author: Напольских Владимир Владимирович
- Language: Русский
- Year: 1997