N.V. Shishkin1, A.V. Yurlov2, I.N. Molchanov3, V. O. Yudin4

1–4 The Academy of the Federal Guard Service of the Russian Federation (Orel, Russia)
1 shishkin_nv@mail.ru, 2 yurlov@bk.ru, 3 zorro_42@rambler.ru, 4 attitudehxc@gmail.com