%0 Journal Article
%A Costa, David G.
%A Guo, Yuxia
%A Ramos, Miguel
%T Existence and multiplicity results for nonlinear elliptic problems in $\bbfR^N$ with an indefinite functional
%J Electronic Journal of Differential Equations
%D 2002
%V 2002
%I mathdoc
%U http://geodesic.mathdoc.fr/item/EJDE_2002__2002__a149/
%G en
%F EJDE_2002__2002__a149