%0 Journal Article
%A Ya. Sh. Il'yasov
%T On the existence of periodic solutions of semilinear elliptic equations
%J Sbornik. Mathematics
%D 1994
%P 167-178
%V 79
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1994_79_1_a10/
%G en
%F SM_1994_79_1_a10