E. G. Demidova
A. A. Ugarov Stary Oskol Technological Institute (branch) of the University MISIS
Russian Federation

Elena G. Demidova — Cand. Sci. (Econ.), Assoc. Prof. of the Department of Economics, Management, and Production Organization

Stary Oskol, Belgorod Region

E. M. Bogatov
A. A. Ugarov Stary Oskol Technological Institute (branch) of the National University of Science and Technology MISIS; Branch of the National University of Science and Technology MISIS
Russian Federation

Egor M. Bogatov — Cand. Sci. (Phys. and Math.), Assoc. Prof. of the Department of Higher Mathematics and Computer Science, A. A. Ugarov Stary Oskol Technological Institute (branch) of MISIS University; Assoc. Prof. of the Department of Mining, MISIS University Branch

Stary Oskol, Belgorod Region

Gubkin, Belgorod Region