Ya.A. Turovskiy1, P.D. Merkutova2, R.A. Tokarev3

1 Institute of Management Problems named after. V.A. Trapeznikova RAS (Voronezh, Russia)

1–3 Voronezh State University (Voronezh, Russia)

1 yaroslav_turovsk@mail.ru, 2 empty.satana@gmail.com, 3 tokarev0801@mail.ru