http://www.etymonline.com/index.php?term=shaman
http://www.shirokogorov.ru/s-m-shirokogorov/publications/psychomental-complex-tungus-03/94
http://www.crystalinks.com/shamanism.html
http://www.shirokogorov.ru/s-m-shirokogorov/publications/psychomental-complex-tungus-03/94
http://www.crystalinks.com/shamanism.html