https://catalogue-scientifique.canada.ca/record=3532400~S6*frc
Rechercher T͡Sopanov, O. Kh; Rechercher Gorodinsky, M. E; Rechercher Rozenblyum, I. S; Rechercher Sosunov, G. M
Russian Federation Committee on Geology and Use of Mineral Resources, Northeastern Committee on Geology and Use of Mineral Resources, 1994
Carte