%0 Journal Article %A Villamizar-Roa, Elder J. %A Banquet, Carlos %T On the Schrödinger equations with isotropic and anisotropic fourth-order dispersion %J Electronic Journal of Differential Equations %D 2016 %V 2016 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2016__2016__a4/ %G en %F EJDE_2016__2016__a4