00914naa#a2200217#i#450# EN\\bibl\55037 20260304094929.3 2500-0535 20230629b2023####ek#y0engy0150####ca ENG RU 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 Journal article Irkutsk Institute of Solar-Terrestrial Physics SB RAS 2023 6 с. Journal article local Основные принципы и теория измерений. Методы диагностики плазмы. 533.9.08 ENG Maksimov Denis Sergeevich Kogogin Denis Aleksandrovich Nasyrov Igor Albertovich Zagretdinov Renat Vagizovich naukaru.ru