Olga Nikolaevna Yarkova
Cand. Sc. Economics, Associate Professor,
Associate Professor of the
Department of mathematical Methods and Models in
Economics of Orenburg State University.
E-mail: yarkova_on@mail.ru
Aleksandra Aleksandrovna Osipova
Student of the Department of Computational
Machinery
and Information Security of Orenburg State
University. E-mail: sandrenok92@mail.ru