00558naa#a2200181#i#450# EN\INFRA-M\bibl\4757 20240514041732.2 2712-9640 20150317b2015####ek#y0engy0150####ca RUS RU Spectra of variations and cosmic ray anisotropy during GLE of June 11, 1991 Journal article Moscow INFRA-M Academic Publishing LLC. 2015 5 с. Journal article local Kravtsova Marina Vladimirovna Sdobnov Valeriy Evgen'evich naukaru.ru