%0 Journal Article
%A Ya. L. Alpert
%A F. F. Dobryakova
%A E. F. Chudesenko
%A B. S. Shapiro
%T On the results of the electron concentration determinations in the external region of the ionosphere made on the basis 

%J Doklady Akademii Nauk
%D 1958
%P 743-746
%V 120
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1958_120_4_a14/
%G ru
%F DAN_1958_120_4_a14