@article{EJDE_2009__2009__a136,
     author = {Luo,  Yuwen},
     title = {Regularity of weak solutions to the magneto-hydrodynamics equations in terms of the direction of velocity},
     journal = {Electronic journal of differential equations},
     year = {2009},
     volume = {2009},
     zbl = {1178.35304},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2009__2009__a136/}
}