%0 Journal Article
%A N. P. Erugin
%T The analytic theory and problems in the real theory of differential equations, connected with the first method and with methods of the analytic theory
%J Differencialʹnye uravneniâ
%D 1967
%P 1821-1863
%V 3
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1967_3_11_a1/
%G ru
%F DE_1967_3_11_a1