@article{Myachin2022unobserved,
author={Myachin, N.V. and Shkvarok, V.M.},
title={Unobserved economy as a barrier to socio-economic development of the region},
journal={The Economy under Guard},
publisher={Nizhny Novgorod Academy of the Ministry of the Interior of Russia},
year={2022},
pages={64-72},
volume={2022},
issue={3},
}