%0 Journal Article
%A V. F. Butuzov
%T A certain integro-differential equation with a small parameter multiplying the derivative in the case when the degenerate equation occurs in the spectrum
%J Differencialʹnye uravneniâ
%D 1971
%P 919-922
%V 7
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1971_7_5_a13/
%G ru
%F DE_1971_7_5_a13