V.M. Artyushenko1, V.I. Volovach2

1 FSBEI HE «Moscow State University of Geodesy and Cartography» (Moscow, Russia)

2 Volga Region State University of Service (Toglyatti, Russia)

2 MIREA - Russian Technological University (Moscow, Russia)

1 artuschenko@mail.ru; 2 volovach.vi@mail.ru