Kostin, A. V., O. I. Bukhtoyarov, and L. V. Mostalygina. “The Study of the Sorption Mechanism of Ions Copper and Lead by Bentonite Clay”. Sorbtsionnye I Khromatograficheskie Protsessy, Vol. 12, no. 6, Nov. 2019, https://journals.vsu.ru/sorpchrom/article/view/1884.