%0 Journal Article
%A V. A. Strizhkov
%T A criterion for solvability in the large of singularly perturbed nonlinear problems
%J Differencialʹnye uravneniâ
%D 1992
%P 1644-1646
%V 28
%N 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1992_28_9_a26/
%G ru
%F DE_1992_28_9_a26