%0 Journal Article
%T Development of signaling devices in the period of imperialism (1906-1917). Part 2: Regulation of trafﬁc, electric rod system and open line block
%A Lupal, N..
%K regulation of train trafﬁc, electric rod system, open line block
%J Transport automation research
%D 2017
%N 3
%P 9
%I FSBEI HE &quot;Emperor Alexander I St. Petersburg State Transport University&quot;