00714naa#a2200193#i#450# EN\\bibl\22242 20260312173619.4 2500-0535 20180629b2018####ek#y0engy0150####ca ENG RU Statistical studies of duration of low-power solar flares Journal article Irkutsk Institute of Solar-Terrestrial Physics SB RAS 2018 8 с. Journal article local Астрономия. Астрофизика. Исследование космического пространства. Геодезия. 52 ENG Borovik Aleksandr Vasil'evich Zhdanov Anton Andreevich ras.editorum.ru