%0 Journal Article
%A M. A. Valiev
%T A method of regularizing singularly perturbed differential equations in Hilbert space
%J Doklady Akademii Nauk
%D 1975
%P 1008-1011
%V 220
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1975_220_5_a2/
%G ru
%F DAN_1975_220_5_a2