Imash, A.A., B.B. Kaidar, Y.A. Zhumataev, and G.T. Smagulova. “Ways of Complex Processing of Coal”. Combustion and Plasma Chemistry 19, no. 4 (December 15, 2021): 327–338. Accessed May 18, 2024. https://cpc-journal.kz/index.php/cpcj/article/view/90.