K. T. Zhantasov, Z. U. Myrhalykov, B. B. Turakulov, M. K. Zhantasov, E. N. Kocherov, and D. M. Zhantasova, “Improvement of a Preparation Process of Chromite Raw Material Used for Ferroalloys and Pigments Manufacture”, Eurasian Chem.-Technol. J., vol. 17, no. 3, pp. 251–260, Jul. 2015.