@article{EJDE_2009__2009__a19,
     author = {Fan,  Jishan and Gao,  Hongjun},
     title = {Two component regularity for the {Navier-Stokes} equations},
     journal = {Electronic journal of differential equations},
     year = {2009},
     volume = {2009},
     zbl = {1178.35287},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2009__2009__a19/}
}