00692naa#a2200181#i#450# EN\INFRA-M\bibl\16398 20240505041210.7 2500-0535 20170505b2017####ek#y0engy0150####ca ENG RU Possibilities and problems of solar magnetic field observations for space weather forecast Journal article Moscow INFRA-M Academic Publishing LLC. 2017 13 с. Journal article local Астрономия. Астрофизика. Исследование космического пространства. Геодезия. 52 ENG Demidov Mikhail Leonidovich naukaru.ru