%0 Journal Article
%A Ramos, M.
%T Periodic solutions of higher order ordinary differential equations with one-sided growth restrictions on the nonlinear term
%J Portugaliae mathematica
%D 1990
%P 431-436
%V 47
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PORMA_1990__47_4_115732/
%G en
%F PORMA_1990__47_4_115732