00652naa#a2200193#i#450# EN\INFRA-M\bibl\48869 20240425083248.4 2500-0535 20220630b2022####ek#y0engy0150####ca ENG RU Pitch-angle anisotropy and differential rigidity spectra of cosmic rays during GLE on May 2 and 6, 1998 Journal article Moscow INFRA-M Academic Publishing LLC. 2022 4 с. Journal article local Астрономия. Геодезия. 52 ENG Lukovnikova Anna Aleksandrovna Sdobnov Valeriy Evgen'evich naukaru.ru