M.A. Abrosimov – Post-graduate Student, 

Department of Applied Information Technologies, Yuri Gagarin State Technical University of Saratov E-mail: destinywatcher@gmail.com

A.V. Brovko – Dr. Sci. (Phys.-Math.), Professor, 

Department of Applied Information Technologies, Yuri Gagarin State Technical University of Saratov

Email: brovkoav@gmail.com