00666naa#a2200169#i#450# EN\\bibl\81001 20250208223539.6 1815-588X 20240329b2024####ek#y0engy0150####ca RU Methodology for determining local speed losses of freight trains within the boundaries of the railway Journal article Saint-Petersburg FSBEI HE "Emperor Alexander I St. Petersburg State Transport University" 2024 11 с. Journal article local Организация движения грузовых поездов. 656.222.6 Marinin Sergey Aleksandrovich itt-pgups.ru