V. M. Chetverikov
National Research University Higher School of Economics (HSE University)
Russian Federation

Victor M.  – Dr. Sci. (Phys.-Math.), Professor, School of Applied Mathematics, HSE Tikhonov Moscow Institute of Electronics and Mathematics

34, Tallinskaya Str., Room 422, Moscow, 12345

O. V. Pugacheva
Francisk Skorina Gomel State University
Belarus

Olga V. Pugacheva – Cand. Sci. (Econ.), Associate Professor, Department of Economic Informatics, Accounting and Commerce

104, Sovetskaya Str., Gomel, 246019

T. D. Vorontsova
National Research University Higher School of Economics (HSE University)
Russian Federation

Tatyana D. Vorontsova – Lecturer, School of Applied Mathematics, HSE Tikhonov Moscow Institute of Electronics and Mathematics

34, Tallinskaya Str., Room 901, Moscow, 123458