%0 Journal Article
%A N. N. Nefedov
%T The method of differential inequalities for nonlinear singularly perturbed problems with contrast structures of step type in the critical case
%J Differencialʹnye uravneniâ
%D 1996
%P 1529-1537
%V 32
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1996_32_11_a12/
%G ru
%F DE_1996_32_11_a12