Smailov, K. M., Y. Nuruly, and U. Z. Beisenbiyeva. “Development of an Innovative Technology for the Complex Extraction of Nickel and Cobalt from Iron-Silicate Ores”. European Journal of Advanced Chemistry Research, vol. 3, no. 4, Nov. 2022, pp. 10-15, doi:10.24018/ejchem.2022.3.4.123.