@article{Stepanov2020shaposhnikov,
author={Stepanov, A..},
title={Shaposhnikov V.N. Particles in the modern Russian language. The development of the grammatical class. — M.: INFRA-M, 2018. 149 p.},
journal={Scientific Research and Development. Modern Communication Studies},
publisher={INFRA-M Academic Publishing LLC.},
year={2020},
pages={28-28},
volume={9},
issue={2},
}