1. O.M.Beketov National University of Urban Economy, 17, Marshal Bazhanov Street, 61002, Kharkiv, Ukraine
2. Ukrainian State University of Railway Transport, 7, Feuerbach square, 61050, Kharkiv, Ukraine
3. National Technical University “Kharkiv Polytechnic Institute”, 2, Kyrpychova Str., Kharkiv 61002, Ukraine