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2. Perez, J.P.H., Folens, K., Leus, K., Vanhaecke, F., Van Der Voort, P., and Laing, G.D., Progress in Hydrometallurgical Technologies to Recover Critical Raw Materials and Precious Metals from Low-Concentrated Streams, Resources, Conserv. Recycl., 2019, vol. 142, pp. 177–188.
3. Ryzhova, L.P. and Salei, A.U., Problems and Prospects for the Development of Mineral Resource Base of Ore Deposits in Russia and Abroad, Vestn. Nauk. Obr., 2018, vol. 1, no. 5(41), pp. 46–49.
4. Chanturia, V.A. and Kozlov, A.P., Modern Problems of Complex Processing of Rebellious Ores and Man-Made Raw Materials,Plaksin’s Lectures-2017: Modern Problems of Complex Processing of Rebellious Ores and Man-Made Raw Materials, 2017, pp. 3–6.
5. Federal Law no. 219-FZ on Amendments to the Federal Law on Environmental Protection and Individual Legislative Acts of the Russian Federation dated 21.07.2014.