TY JOUR TI The method of supplying fuel to an internal combustion gas engine KW gas engine KW natural gas KW fuel supply KW filling ratio KW mixing quality KW environmental friendliness of engines JO Proceedings of Petersburg Transport University AU Vorob'ev, A.A. AU Penkin, A.L. AU Vedernikova, D.R. PY 2024 IS 21 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"