Maloletnev, A., Kairbekov, Z., Yemelyanova, V., Myltykbaeva, Z., & Baizhomartov, B. (2012). The deep processing of oil residues conjunction with shales. Chemical Bulletin of Kazakh National University, 68(4), 22-28. https://doi.org/https://doi.org/10.15328/chemb_2012_422-28