%0 Journal Article
%T Development of signaling, interlocking and line-block in the pre-reform period (before 1861)
%A Lupal, N.V.
%K Tsarskoye Selo Railway, semaphore line, electrical telegraph, signaling, semaphore
%J Transport automation research
%D 2015
%N 1
%P 17
%I FSBEI HE &quot;Emperor Alexander I St. Petersburg State Transport University&quot;