R. A. Fayzrakhmanov - Dr.Sc. (Econom.), Professor, Head of Department, Perm National Research Polytechnic University. Е-mail: fayzrakhmanov@gmail.com
S. V. Smagin - Post-graduate Student, Perm National Research Polytechnic University. E-mail: enc60@mail.ru
V. S. Baikov - Post-graduate Student, Perm National Research Polytechnic University. E-mail: baykov.vlad@gmail.com