Yaroslav Onishchenko (2017). THE MATURITY OF ORGANIC MATTER FROM THE SEMILUKS HORIZON OF VOLGA-URAL BASIN ACCORDING TO DISTRIBUTION OF ALKYLTOLUENES. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining, 531-536. https://doi.org/10.5593/sgem2017h/15/s06.067