@article{Otvagina2017,
author={Otvagina, M.G. and Shapovalov, D.A. and Doncov, A.V. and Luk'yanova, T.S.},
title={},
journal={MOSCOW ECONOMIC JOURNAL},
publisher={Electronic science},
year={2017},
pages={35-35},
volume={2},
issue={5},
}