%0 Journal Article %A G. M. Martynkevich %T Water vapour in the neighbourhood of mesopause and the mechanism of $\mathrm{H}^+(\mathrm{H}_2\mathrm{O})_n$ ion formation %J Doklady Akademii Nauk %D 1975 %P 336-338 %V 222 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1975_222_2_a17/ %G ru %F DAN_1975_222_2_a17