00693naa#a2200193#i#450# EN\\bibl\126807 20260701205133.3 1815-588X 20260630b2026####ek#y0engy0150####ca RU Simulation Model of the PTP Protocol Operation in E2E Mode Journal article Saint-Petersburg FSBEI HE "Emperor Alexander I St. Petersburg State Transport University" 2026 12 с. Journal article local Электросвязь. Техника электросвязи. 621.39 Oparin Evgeniy Valer'evich Proshin Fedor A. Oparina Ekaterina Vladimirovna atjournal.ru