%0 Journal Article
%A V. P. Polityukov
%T On the theory of upper and lower solutions and the solvability of quasilinear integro-differential equations
%J Sbornik. Mathematics
%D 1979
%P 499-507
%V 35
%N 4
%U http://geodesic.mathdoc.fr/item/SM_1979_35_4_a3/
%G en
%F SM_1979_35_4_a3