%0 Journal Article %T Effects of 7September 5–12, 2017 solar flares on regional disturbance of Earth’s ionosphere as recorded by GNSS stations located in the Volga Federal District of the Russian Federation %A Maksimov, D.S. %A Kogogin, D.A. %A Nasyrov, I.A. %A Zagretdinov, R.V. %K ionosphere, GNSS, total electron content, solar flare, magnetic storms, GPS, GLONASS, TEC maps %J Solar-Terrestrial Physics %D 2023 %N 9 %P 6 %I INFRA-M Academic Publishing LLC.