00769naa#a2200193#i#450# EN\\bibl\104341 20250930182746.2 1815-588X 20250919b2025####ek#y0engy0150####ca RU A Mathematical Model of External Forces Acting on the Train Traction System in Both Traction and Brake Modes Journal article Saint-Petersburg FSBEI HE "Emperor Alexander I St. Petersburg State Transport University" 2025 5 с. Journal article local Взаимодействие пути и колеса. 625.032.3 Ripol'-Saragosi Tat'yana Leonidovna Ripol'-Sragosi Leonid Franciskovich Yaickov Ivan Anatol'evich izvestiapgups.editorum.ru