Nurgain, A., Nazhipkyzy, M., Zhaparova, A. A., Issanbekova, A. T., Alfe, M., & Musina, A. S. (2020). Acid Modification of Diatomite-Based Sorbents. Eurasian Chemico-Technological Journal, 22(3), 157–164. https://doi.org/10.18321/ectj975