00619naa#a2200193#i#450# EN\INFRA-M\bibl\69840 20241018114412.5 2500-0535 20231228b2023####ek#y0engy0150####ca ENG RU Dynamics of small-scale magnetic fields before small and large solar flares Journal article Moscow INFRA-M Academic Publishing LLC. 2023 8 с. Journal article local Астрономия. Геодезия. 52 ENG Borovik Aleksandr Vasil'evich Zhdanov Anton Andreevich zh-szf.ru