O. N. Maslov - Dr.Sc. (Eng.), Professor, Head of Department of Economic and Information Systems, Povolzhskiy State University of Telecommunications and Informatics (Samara). E-mail: maslov@psuti.ru
A. S. Rakov - Ph.D. (Eng.), Doctoral Candidate of Department of Economic and Information Systems, Povolzhskiy State University of Telecommunications and Informatics (Samara). E-mail: racov-as@psuti.ru