00687naa#a2200181#i#450# EN\\bibl\36357 20240506052627.1 2686-9896 20200605b2020####ek#y0engy0150####ca RU METHODS OF ENERGY EFFICIENCY INCREASING IN PETROCHEMISTRY Journal article Angarsk Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University» 2020 1 с. Химия, физика и механика материалов. 04.04.02 local Journal article local Zayac Roman Romanovich Semenov Ivan Aleksandrovich angtu.editorum.ru