00663naa#a2200193#i#4500001001500000005001700015011001400032100004100046101000800087102000700095200009200102210010100194215001100295608002700306675007100333700002500404700002300429856001700452EN\\bibl\8190320241121225943.4##a2412-9186##a20180925b2018####ek#y0engy0150####ca0#aRUS##aRU1#aA historical introduction to the sound signalling on railway transporteJournal article1#aSaint-PetersburgcFSBEI HE "Emperor Alexander I St. Petersburg State Transport University"d2018##a16 с.##aJournal article2local##aМетоды измерений в акустике. 534.6.08zRUS#1aZaltsmangGennady K #1aProningAnatoly P 4#aatjournal.ru