R.A. Kochkarov1, A.V. Timoshenko2, A.M. Kazancev3, A.M. Kochkarov4, A.A. Omelshin5

1–3 Financial University under the Government of the Russian Federation (Moscow, Russia)
4 North Caucasian State Academy (Cherkessk, Russia)
5 Military University of Radio Electronics (Cherepovets, Russia)
1 rkochkarov@fa.ru