А.А. Loktev - Dr.Sc.(Phys.-Math.), Associate Professor, Head of Department of Structural Mechanics, Machinery and Equipment, Moscow State University of Railway Transport (MIIT). E-mail: aaloktev@yandex.ru
А.V. Zaletdinov - Post-graduate student, Moscow Financial and Law University (MFLA). E-mail: azaletdinov@gmail.com
А.V. Sycheva - Senior Lecturer, Moscow State University of Railway Transport (MIIT). E-mail: avsycheva@gmail.com