%0 Journal Article
%A G. V. Sherbina
%T Nonlinear boundary value problems for second-order equations
%J Differencialʹnye uravneniâ
%D 1981
%P 1050-1059
%V 17
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1981_17_6_a10/
%G ru
%F DE_1981_17_6_a10