%0 Journal Article %T On the formation of the F1 layer during sudden stratospheric warming events %A Polekh, N.M. %A Chernigovskaya, M.A. %A Yakovleva, O.E. %K ionosphere, low atmosphere, stratospheric warming, F1 layer %J Solar-Terrestrial Physics %D 2019 %N 5 %P 10 %I INFRA-M Academic Publishing LLC.