%0 Journal Article
%A L. P. Sulima
%T On the theory of the second order differential equation of degree two
%J Differencialʹnye uravneniâ
%D 1973
%P 2010-2019
%V 9
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1973_9_11_a9/
%G ru
%F DE_1973_9_11_a9