Baizhumanova, R.; Germi, F.; Kalugin, S.; Abilov, Z.; Omarova, D. Innovative Method of Direct Determination of the Content of Paraffins, Naphthenes, Aromatics and Sulfur Compounds by Capillary High-Resolution Gas Chromatography. Chemical Bulletin of Kazakh National University 2012, 65, 219-224.