1 |
Ukrainian State University of Railway Transport. |
2 |
O.M.Beketov National University of Urban Economy |
CORRESPONDING AUTHOR
Liudmyla Trykoz
Ukrainian State University of Railway Transport., Feuerbach square, 7, 61050 Kharkiv, Ukraine
Submission date: 2017-10-20
Final revision date: 2017-11-20
Acceptance date: 2017-12-07
Online publication date: 2017-12-18
Publication date: 2018-03-12