%0 Journal Article
%A V. Sh. Burd
%A Yu. S. Kolesov
%A M. A. Krasnosel'skii
%T On the existence and constancy of sign of Green's function of scalar equations of high order with almost periodic coefficients
%J Izvestiya. Mathematics 
%D 1969
%P 1319-1334
%V 3
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_1969_3_6_a9/
%G en
%F IM2_1969_3_6_a9