TY - JOUR AU - Ragoub, L. TI - Symmetry theorems via the continuous Steiner symmetrization JO - Electronic journal of differential equations PY - 2000 VL - 2000 UR - http://geodesic.mathdoc.fr/item/EJDE_2000__2000__a15/ LA - en ID - EJDE_2000__2000__a15 ER -