Гомель StarovoitovE.I. Belarusian State University of Transport, 246653, Gomel, Belarus, 34, Kirova st. edstar@mail.by Read more about Starovoitov E. I. LeonenkoD.V. Belarusian State University of Transport, 246653, Gomel, Belarus, 34, Kirova st. leoden@tut.by Read more about Leonenko D. V,
