1. Data from the statistical reports OAO RZD.
2. Y. Sokolov, O. Efimova, I. Lavrov and O. Pokrovskaya, “Investigation of the Market Potential of Transport and Logistics Services in the 1520Space,” in IOP Conference Series: Earth and Environmental Science (2019), p. 012213.
3. F. M. Scherer and D. Ross, Branch Markets Structure (Infra-M, Moscow, 1997), p. 698.
4. O. Shai, Branch Markets Organization. Theory and its Applications (Higher School of Economics, Publishing House, Moscow, 2014), p. 503.
5. N. M. Rozanova, Branch Markets Theory – 2-nd edition, revised and supplemented (Iurait, Publishing House, Moscow, 2014), p. 795.