@article{Yakovleva2021behavior,
author={Yakovleva, O.E. and Kushnarenko, G.P. and Kuznetsova, G.M.},
title={Behavior of electron density in the ionosphere over Norilsk during the period of declining solar activity},
journal={Solar-Terrestrial Physics},
publisher={INFRA-M Academic Publishing LLC.},
year={2021},
pages={70-73},
volume={7},
issue={2},
}