For citations:
Bubnova G.V., Fiodorov Yu.N. ON THE EFFECT OF DIFFERENTIATION OF RAILWAY LINES. World of Transport and Transportation. 2012;(6):62-69. (In Russ.)
Bubnova G.V., Fiodorov Yu.N. ON THE EFFECT OF DIFFERENTIATION OF RAILWAY LINES. World of Transport and Transportation. 2012;(6):62-69. (In Russ.)