00666naa#a2200205#i#450# EN\\bibl\81795 20241125071257.1 2412-9186 20151225b2015####ek#y0engy0150####ca ENG RU Basic principles of onboard positioning systemcorrectness test by railway automation means Journal article Saint-Petersburg FSBEI HE "Emperor Alexander I St. Petersburg State Transport University" 2015 11 с. Journal article local . 004.052+656.25 ENG Popov Pavel A Korolev Ivan N Mylnikov Pavel D atjournal.ru