TY  JOUR
TI  Telegraph, railways and safety protection of train traffic
KW  telegraph
KW  railway
KW  safety protection
KW  first underground cables
KW  circuit of the first main telegraph communication line
JO  Transport automation research
AU  Kudryashov, V.A.
PY  2016
IS  2
PB  FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"