Introduction by Olga Letykai Csonka of The State Chukchi-Eskimo Group « Ergyron » (« Sunrise » in the Chukchi language). It was created in 1968 as a professional dance and song Chukchi-Eskimo group. In 1974 it acquired a status of a state ensemble.
The rest is here:
Chukotka "The Ergyron Ensemble" Fribourg 2008 part 1