00644naa#a2200157#i#450# EN\\bibl\7797 20241110094646.7 20221019b2022####ek#y0engy0150####ca RU ASSESSMENT OF INSTRUMENTAL RECOGNIZABILITY OF RAILWAY SIGNALLING SIGNS Conference article/thesis Saint-Petersburg FSBEI HE "Emperor Alexander I St. Petersburg State Transport University" 2022 4 с. Conference article/thesis local в технических науках. 51-74 Техника средств транспорта. 629 Zhigalko Evgeniy Faddeevich atjournal.ru