P. Aleksandrov, G. Bukhtiyarova, V. Kashkin, A. Noskov, EFFECT OF H2S ON HYDRODESULPHURIZATION OF DIBENZOTHIOPHENE, 4-METHYLDIBENZOTHIOPHENE AND 4,6-DIMETHYLDIBENZOTHIOPHENE ON COMO/AL2O3 CATALYST, Chemical Engineering Transactions. 17 (2009) 1437-1442. doi:10.3303/CET0917240.