00621naa#a2200193#i#450# EN\\bibl\7317 20260312110312.4 2712-9640 20151217b2015####ek#y0engy0150####ca RUS RU Long-term variations in the neutral gas composition of the termosphere above Irkutsk Journal article Irkutsk Institute of Solar-Terrestrial Physics SB RAS 2015 4 с. Journal article local Kushnarenko Galina Petrovna Yakovleva Olga Evgenyevna Kuznetsova Galina Mihaylovna ras.editorum.ru