%0 Journal Article
%A G. M. Martynkevich
%T On the nature and mechanisms of $17^+$, $18^+$, $19^+$, and $44^+$ ion formation in the upper atmosphere
%J Doklady Akademii Nauk
%D 1975
%P 72-75
%V 222
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1975_222_1_a14/
%G ru
%F DAN_1975_222_1_a14