D. D. Serbina
Volgograd Institute of Management – Branch of Russian Presidential Academy of National Economy and Public Administration (RANEPA)
Russian Federation

Daria D. Serbina, student

Volgograd

E. A. Chumakova
Volgograd Institute of Management – Branch of Russian Presidential Academy of National Economy and Public Administration (RANEPA)
Russian Federation

Ekaterina A. Chumakova, CandSc (Econ.), Associate Professor, Head of Department of Economy and Finances

Volgograd 

R. R. Musaev
Autonomous Non-Profit Organization of Higher Education “Volgograd Institute of Business”
Russian Federation

Ramil Rufat oglu Musaev, Senior Lecturer of Department of Economy and Management  

Volgograd