1. Samonov A.E., Samonov A.A. Prospects of revival of rare earth production in Russia. Online access: http://www.newchemistry.ru.
2. The raw material base, methods of ore mining and milling; production, consumption and economics of rare earths and yttrium abroad (according to foreign literature for the period 1960-1991). Moscow: GIREDMET; 1991.
3. Kosynkin V.D., Glebov V.A. Revival of Russian production of rare earth metals is the most important task of the domestic economy. International Conference “REM of Russia”. Moscow: VNIIHT, plenary report; 2011.
4. Shabayev S.B. Annual Report of Open Joint Stock Company “Solikamsk Magnesium Plant” in 2010. Report on the results of the development in the priority areas of JSC “SMP” Solikamsk; 2011.
5. Sarychev G.A.,, Kosynkin V.D., Trubakov Yu. M. Current state of research in the field of technology of rare earth elements in Russia. Proceedings of All-Russian conference on rare earth materials “REM 2013”; 2013.