TY JOUR TI PREPARATION AND USE OF THE BIOFUEL COMPOSITION ON THE BASIS OF RAPE OIL KW biofuel composition KW rape oil KW neutralization process KW fat acids KW tractor KW technical level KW estimation JO Bulletin of KSAU AU Selivanov, N.I. AU Dorzheev, A.A. PY 2012 IS 0 PB Krasnoyarsk State Agrarian University