Kairbekov, Zhaksyntay, Valentina Yemelyanova, and Bedelzhan Baizhomartov. “Thermocatalytical Processing of Coal and Shales”. Chemical Bulletin of Kazakh National University 68, no. 4 (December 4, 2012): 126-133. Accessed December 22, 2024. https://bulletin.chemistry.kz/index.php/kaznu/article/view/289.