Baikenov, Murzabek I., et al. “Optimal Conditions for Demetallization of the Heavy Fraction of Low-Temperature Coal Tar of Shubarkol Komir JSC in the Presence of ‘Coal Shale’ Catalytic Additive”. EURASIAN JOURNAL OF CHEMISTRY, vol. 29, no. 3 (115), Sept. 2024, pp. 30-41, doi:10.31489/2959-0663/3-24-11.