%0 Journal Article
%A Costa,  David G.
%A Guo,  Yuxia
%A Ramos,  Miguel
%T Existence and multiplicity results for nonlinear elliptic problems in \(\mathbb{R}^N\) with an indefinite functional
%J Electronic journal of differential equations
%D 2002
%V 2002
%U http://geodesic.mathdoc.fr/item/EJDE_2002__2002__a249/
%G en
%F EJDE_2002__2002__a249