00792naa#a2200193#i#450# EN\\bibl\40526 20241125201633.1 2073-1574 20201118b2020####ek#y0engy0150####ca RU Temperature-entropy diagrams for calculating cycles of refrigerating machines using refrigerant mixtures Journal article Astrakhan Astrakhan State Technical University 2020 7 с. Journal article local Библиотечное дело. Библиотековедение. 2 Инженерное дело. Техника в целом. Транспорт. 62 Bukin Vladimir Grigorievich Ezhov Alexey Vasilievich Andreev Aleksander Ivanovich vestnik.astu.org