Vigdorovich, V. I., L. E. Tsygankova, D. V. Nikolenko, and A. S. Protasov. “Sorption Extraction of Copper from Running Solutions by Glauconite Concentrate GBMTO”. Sorbtsionnye I Khromatograficheskie Protsessy, Vol. 13, no. 4, Nov. 2019, https://journals.vsu.ru/sorpchrom/article/view/1656.