E.S. Budaev1, S.S. Mikhailova2, I.S. Evdokimova3, E.A. Khalmakshinov4

1,2 Financial University under the Government of the Russian Federation (Moscow, Russia)

3,4 East Siberian State University of Technology and Management (Ulan-Ude, Russia)

O.V. Melnik1, M.B. Nikiforov2, V.A. Sablina3, A.D. Chernenko4

1–4 Ryazan State Radio Engineering University named after V.F. Utkin (Ryazan, Russia)
1 omela111@yandex.ru, 2 nikiforov.m.b@evm.rsreu.ru, 3 flyingvictory@mail.ru, 4 anuta201294@yandex.ru

A.K. Alzubaidi1, A.A. Petrov2

1,2 Bunin Yelets State University (Yelets, Russia)

1 azhrstar90@gmail.com, 2 xeal91@yandex.ru