Gomelya, N., Trokhуmenko G., T. Shabliy, and O. Hlushko. “Efficiency Estimation of Cation-Exchange Recovery of Heavy Metals from Solutions Containing Their Mixtures”. Technology Audit and Production Reserves, vol. 2, no. 3(40), Dec. 2017, pp. 41-47, doi:10.15587/2312-8372.2018.129633.