Gulyaeva O. A. (Candidate of Economic Sciences, Associate Professor, Emperor Alexander I St. Petersburg State Transport University)
Xenofontova T. Yu. (Dan., Professor, Emperor Alexander I St. Petersburg State Transport University)
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Gulyaeva O. A. (Candidate of Economic Sciences, Associate Professor, Emperor Alexander I St. Petersburg State Transport University)
Xenofontova T. Yu. (Dan., Professor, Emperor Alexander I St. Petersburg State Transport University)
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