%0 Journal Article
%A Amaral, Luís
%T Nonresonance conditions at the two first eigenvalues for semilinear equations
%J Portugaliae mathematica
%D 1993
%P 255-262
%V 50
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PORMA_1993__50_3_115687/
%G en
%F PORMA_1993__50_3_115687