Semyachkov , Aleksandr I., and Valery V. Balashenko. “Assessment of Economic and Environmental Conditions for Effective Development of Silicate Nickel Ores from Deposits in the Middle Urals”. Economy of Regions 20, no. 1 (March 28, 2024): 205–217. Accessed May 14, 2026. https://www.economyofregions.org/ojs/index.php/er/article/view/445.