00754naa#a2200205#i#450# EN\INFRA-M\bibl\22242 /en/manage/index 20250811102637.1 2500-0535 20180629b2018####ek#y0engy0150####ca ENG RU Statistical studies of duration of low-power solar flares Journal article Moscow INFRA-M Academic Publishing LLC. 2018 8 с. Journal article local Астрономия. Астрофизика. Исследование космического пространства. Геодезия. 52 ENG Borovik Aleksandr Vasil'evich Zhdanov Anton Andreevich fht.editorum.ru /en/manage/index