%0 Journal Article %A Rhouma, Nedra Belhaj %A Mâatoug, Lamia %T Existence of positive solutions for two nonlinear eigenvalue problems %J Electronic journal of differential equations %D 2003 %V 2003 %U http://geodesic.mathdoc.fr/item/EJDE_2003__2003__a139/ %G en %F EJDE_2003__2003__a139