00663naa#a2200193#i#450# EN\\bibl\81903 20241121221325.4 2412-9186 20180925b2018####ek#y0engy0150####ca RUS RU A historical introduction to the sound signalling on railway transport Journal article Saint-Petersburg FSBEI HE "Emperor Alexander I St. Petersburg State Transport University" 2018 16 с. Journal article local Методы измерений в акустике. 534.6.08 RUS Zaltsman Gennady K Pronin Anatoly P atjournal.ru