00663naa#a2200181#i#450# EN\\bibl\119590 20260407224107.2 2223-9987 20260403b2026####ek#y0engy0150####ca RU A comparative analysis of the causes underlying unscheduled repairs of passenger railway cars Journal article Saint-Petersburg FSBEI HE "Emperor Alexander I St. Petersburg State Transport University" 2026 8 с. Journal article local Пассажирские вагоны. 629.45 Vishnyakov Ivan Alekseevich Evseev Dmitriy Gennad'evich atjournal.ru