%0 Journal Article
%A Garrione,  Maurizio
%T A note on a nonresonance condition at zero for first-order planar systems
%J Electronic journal of differential equations
%D 2015
%V 2015
%U http://geodesic.mathdoc.fr/item/EJDE_2015__2015__a16/
%G en
%F EJDE_2015__2015__a16