00707naa#a2200193#i#450# EN\INFRA-M\bibl\23002 20250218203720.2 2500-0535 20180928b2018####ek#y0engy0150####ca ENG RU Distribution of low-power solar flares by brightness rise time Journal article Moscow INFRA-M Academic Publishing LLC. 2018 9 с. Journal article local Астрономия. Астрофизика. Исследование космического пространства. Геодезия. 52 ENG Borovik Aleksandr Vasil'evich Zhdanov Anton Andreevich naukaru.ru