%0 Journal Article
%A Xi, Shouliang
%A Jia, Mei
%A Ji, Huipeng
%T Multiple nonnegative solutions for second-order boundary-value problems with sign-changing nonlinearities
%J Electronic Journal of Differential Equations
%D 2009
%V 2009
%I mathdoc
%U http://geodesic.mathdoc.fr/item/EJDE_2009__2009__a47/
%G en
%F EJDE_2009__2009__a47