@article{EJDE_2004__2004__a96,
     author = {Vera Villagran,  Octavio Paulo},
     title = {Gain of regularity for a {Korteweg-de} {Vries--Kawahara} type equation},
     journal = {Electronic journal of differential equations},
     year = {2004},
     volume = {2004},
     zbl = {1064.35172},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2004__2004__a96/}
}