%0 Journal Article %A Ragoub, L. %T Symmetry theorems via the continuous Steiner symmetrization %J Electronic Journal of Differential Equations %D 2000 %V 2000 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2000__2000__a88/ %G en %F EJDE_2000__2000__a88