SeralinА., E. Musayeva, BeysebekovМ., OmyrzakovМ., Z. Abilov, and BeysebekovМ., “Sorption of ions Pb2+ by cryogels on the basis of polyvinyl alcohol and bentonite clay”, Chemical Bulletin of Kazakh National University, vol. 65, no. 1, pp. 384-387, 1.