.

Afanasiadi , E. I., I. V. Abaturova, and V. P. Novikov. 2003. “Methodological Aspects of Studying Karst in the Exploration of the Vorontsovskoye Gold Ore Deposit in the Northern Urals, to Be Developed by Open-Pit Mining”. Journal of Mining Institute 153 (January), 43-45. https://pmi.spmi.ru/pmi/article/view/9242.