%0 Journal Article %T Electron density in the F1 layer over Norilsk in 2007–2014 %A Kushnarenko, G.P. %A Yakovleva, O.E. %A Kuznetsova, G.M. %K annual variations, electron density, semi-empirical model %J Solar-Terrestrial Physics %D 2019 %N 5 %P 3 %I INFRA-M Academic Publishing LLC.