00840naa#a2200205#i#450# EN\\bibl\18601 20260309125717.1 2712-9640 20180329b2018####ek#y0engy0150####ca RUS RU Fe/O ratio behavior as an indicator of solar plasma state at different solar activity manifestations and in periods of their absence Journal article Irkutsk Institute of Solar-Terrestrial Physics SB RAS 2018 25 с. Journal article local Астрономия. Астрофизика. Исследование космического пространства. Геодезия. 52 RUS Minasyants Gennady Sergeevich Minasyants Tamara Mihaylovna Tomozov Vladimir Mihaylovich ras.editorum.ru