%0 Journal Article
%A A. B. Vasil'eva
%T Singularly perturbed systems that contain an indeterminacy in the degeneracy
%J Differencialʹnye uravneniâ
%D 1976
%P 1748-1757
%V 12
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1976_12_10_a2/
%G ru
%F DE_1976_12_10_a2