A. V. Korennoj1, D. S. Yudakov2, S. M. Alshavva3
1–3 Air Force Academy named after Professor N.E. Zhukovsky and Yu.A. Gagarin (Voronezh, Russia)

1 korennoj@mail.ru, 2 yds12345@rambler.ru, 3 ashawasafwan7@gmail.com