TY  JOUR
TI  Development of signalling, centralization and blocking devices during the period of industrial capitalism (1861-1900). Part 4: Centralization of switches and signals
KW  St. Petersburg - Moscow railway
KW  centralization
KW  semaphore
KW  switch
KW  lock
JO  Transport automation research
AU  Lupal, N.V.
PY  2016
IS  2
PB  FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"