00907naa#a2200217#i#450# EN\INFRA-M\bibl\55037 20250105215601.7 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 Moscow INFRA-M Academic Publishing LLC. 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