@article{EJDE_2016__2016__a37,
     author = {Villamizar-Roa,  Elder J. and Banquet,  Carlos},
     title = {On the {Schr\"odinger} equations with isotropic and anisotropic fourth-order dispersion},
     journal = {Electronic journal of differential equations},
     year = {2016},
     volume = {2016},
     zbl = {1330.35417},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2016__2016__a37/}
}