00637naa#a2200205#i#450# EN\\bibl\132058 20260803051323.1 2222-0364 20231225b2023####ek#y0engy0150####ca RU RESULTS OF STUDIES OF THE EFFECT OF A COAGULANT ON THE PURIFICATION OF USED MOTOR OILS Journal article Omsk FSBEI HE Omsk SAU 2023 7 с. Journal article local Инженерное дело. Техника в целом. 62 MALTSEVA E I DEMCHUK E V MYALO O V PROKOPOV S P vestnik.omgau.ru