00690naa#a2200181#i#4500001001500000005001700015011001400032100004100046101000800087102000700095200016100102210010100263215001100364608002700375675006700402700002200469856001700491EN\\bibl\8183820241124205552.7##a2412-9186##a20161225b2016####ek#y0engy0150####ca0#aRUS##aRU1#aDevelopment of signaling, centralization and blocking devices during the period of industrial capitalism (1861-1900). Part V: Check deviceseJournal article1#aSaint-PetersburgcFSBEI HE "Emperor Alexander I St. Petersburg State Transport University"d2016##a10 с.##aJournal article2local##aМеры безопасности. Сигналы. 656.25zRUS#1aLupalgNikolay V 4#aatjournal.ru