TY  JOUR
TI  Development of signaling, interlocking and line-block in the pre-reform period (before 1861)
KW  Tsarskoye Selo Railway
KW  semaphore line
KW  electrical telegraph
KW  signaling
KW  semaphore
JO  Transport automation research
AU  Lupal, N.V.
PY  2015
IS  1
PB  FSBEI HE &quot;Emperor Alexander I St. Petersburg State Transport University&quot;