%0 Journal Article %A Ferrara, Massimiliano %A Guerrini, Luca %A Zhang, Binlin %T Multiple solutions for perturbed non-local fractional Laplacian equations %J Electronic Journal of Differential Equations %D 2013 %V 2013 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2013__2013__a136/ %G en %F EJDE_2013__2013__a136