TY JOUR TI Composition and structure of oil dispersed systems KW petroleum dispersed systems KW complex structural unit KW aggregative combinations KW associative combinations KW immobilized layer KW asphaltenes KW resins KW asphalt-resinous substances JO Oil and gas technologies and environmental safety AU Pivovarova, N.. AU Tatzhikov, A.. PY 2023 IS 2023 PB Astrakhan State Technical University