%0 Journal Article %A Zhang, Kewei %T Some constancy results for harmonic maps from non-contractable domains into spheres %J Electronic Journal of Differential Equations %D 2000 %V 2000 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2000__2000__a216/ %G en %F EJDE_2000__2000__a216