N.G. LOKHOVA, ZH.A. BALTABEKOVA, M.A. NAIMANBAYEV, A.A. YESSENGAZIYEV AND K.K. KASSYMZHANOV. Extraction of Rare-Earth Metals from Zircon Concentration Tailings. International Journal of Advanced Science and Technology, v. 29, n. 9s, p. 893 - 899, 3 May 2020.