%0 Journal Article %T Wave activity of the mesosphere in the planetary wave range according to OH (3-1) emission observations at Maimaga and Tiksi stations for 2015–2020 %A Sivtseva, V.I. %A Ammosov, P.P. %A Gavrilieva, G.A. %A Ammosova, A.M. %A Koltovskoi, I.I. %K planetary waves, mesopause region, hydroxyl %J Solar-Terrestrial Physics %D 2022 %N 8 %P 5 %I INFRA-M Academic Publishing LLC.