Le « Festival des Shamans » de l’Amdo
http://www.flickr.com/photos/tribuducoin/sets/72157633185430516/
You can read the article of Katia Buffetrille
http://emscat.revues.org/index508.html
As well as this article
http://plateauculture.org/writing/deity-men-reb-gong-tibetan-trance-mediums-transition »