TY JOUR TI PRODUCTION OF BIODIESEL FUEL FROM SUBSTANDARD RAPESEED OIL KW oil-pressing equipment KW rapeseed oil KW freezing of the mixture KW low-temperature properties of biodiesel KW technological production line JO Vestnik of Omsk SAU AU DORZHEEV, A.A. AU GRISHCHENKO, S.V. PY 2023 IS 49 PB FSBEI HE Omsk SAU