Title: Geokhimicheskie osobennosti prot︠s︡essov preobrazovanii︠a︡ nefteĭ, gazov i rassei︠a︡nnogo organicheskogo veshchestva v i︠u︡rskikh i melovykh otlozhenii︠a︡kh Zapadno-Sibirskoĭ ravniny
Subjects: Stratigraphic Geology, Geochemistry, Petroleum, Geology, Natural gas