%0 Journal Article
%A Yu. I. Kovach
%A L. I. Savchenko
%T The estimation of the solution of certain nonlinear integro-differential and operator equations with lag
%J Differencialʹnye uravneniâ
%D 1970
%P 1496-1505
%V 6
%N 8
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1970_6_8_a18/
%G ru
%F DE_1970_6_8_a18