00656naa#a2200181#i#450# EN\\bibl\33967 20260310185734.2 2500-0535 20191217b2019####ek#y0engy0150####ca ENG RU Mid-latitude aurora in solar cycles 23–24 from observations in the south of Eastern Siberia Journal article Irkutsk Institute of Solar-Terrestrial Physics SB RAS 2019 7 с. Journal article local Геология. Геологические и геофизические науки. 55 ENG Mikhalev Aleksandr Vasilyevich ras.editorum.ru