%0 Journal Article
%A A. B. Vasil'eva
%A M. V. Faminskaya
%T A boundary value problem for singularly perturbed differential and difference systems when the unperturbed system lies on the spectrum
%J Differencialʹnye uravneniâ
%D 1977
%P 738-742
%V 13
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1977_13_4_a18/
%G ru
%F DE_1977_13_4_a18