There is a doctoral student named Petra (I forget her last name) at McGill
University in Montreal who has done her ethnographic fieldwork with an
eastern Siberian nomadic group. You can contact the Department of
Anthropology there to get in touch with her (sorry, but I don't have their
phone number or e-mail address handy at this time). Send me a message if
you need me to get that info for you.
Kreg Ettenger