I.M. Lerner1, A.N. Khairullin2, D.V. Shushpanov3, R.R. Fayzullin4, A.R. Yusupov5, S.G. Grigoriev6

1,2,4 Kazan National Research Technical University named after A.N. Tupolev – KAI (Kazan, Russia)

3 The Bonch-Bruevich Saint Petersburg State University of Telecommunications (St. Petersburg, Russia)

5 Bashkir State Pedagogical University named after M. Akmully (Ufa, Russia)

6 Moscow City Pedagogical University (Moscow, Russia)

1 aviap@mail.ru, 2 mr.khayrullin.a@gmail.com, 3 dimasf@inbox.ru, 4 rrfayzullin@kai.ru, 5 azat.yusupov@bk.ru, 6 grigorsg@yandex.ru