@article{Shapovalov2019,
author={Shapovalov, D.A. and Gostischev, D.P. and Savinova, S.V. and Onufrienko, Y.A.},
title={},
journal={MOSCOW ECONOMIC JOURNAL},
publisher={Electronic science},
year={2019},
pages={32-32},
volume={4},
issue={3},
}