00857naa#a2200205#i#450# EN\\bibl\126809 20260701140703.3 1815-588X 20260630b2026####ek#y0engy0150####ca RU Diagnostics of Traction Electric Motor Units of High-Speed Push-Pull Trains on the Russian Railway Journal article Saint-Petersburg FSBEI HE "Emperor Alexander I St. Petersburg State Transport University" 2026 10 с. Journal article local Техника наземных и водных средств транспорта. 629.1 Техника средств транспорта. 629 Ponomarev Il'ya Sergeevich Obuhov Mihail Yur'evich Elin Dmitriy Aleksandrovich Evstaf'ev Andrey Mihaylovich itt-pgups.ru