LDR 00636naa#a2200181#i#450# 001 EN\\bibl\81787 005 20241204112435.3 011 ## _a2412-9186 100 ## _a20150625b2015####ek#y0engy0150####ca 101 0# _aRUS 102 ## _aRU 200 1# _aDevelopment of signaling, interlocking and line-block in the pre-reform period (before 1861) _eJournal article 210 1# _aSaint-Petersburg _cFSBEI HE "Emperor Alexander I St. Petersburg State Transport University" _d2015 215 ## _a17 с. 608 ## _aJournal article _2local 675 ## _aМеры безопасности. Сигналы. 656.25 _zRUS 700 #1 _aLupal _gN V 856 4# _aatjournal.ru _u