%0 Journal Article %A Visetti, Daniela %T Multiplicity of symmetric solutions for a nonlinear eigenvalue problem in $\Bbb R^n$ %J Electronic Journal of Differential Equations %D 2005 %V 2005 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2005__2005__a286/ %G en %F EJDE_2005__2005__a286