@article{Gretchenko2018analysis,
author={Gretchenko, A.I. and Grischenko, P.M.},
title={Analysis of the Problem of Regional Differentiation in the Level of Economic Activity and Unemployment},
journal={Scientific Research and Development. Economics of the Firm},
publisher={INFRA-M Academic Publishing LLC.},
year={2018},
pages={37-45},
volume={7},
issue={2},
}