@article{EJDE_2000__2000__a88,
     author = {Ragoub, L.},
     title = {Symmetry theorems via the continuous {Steiner} symmetrization},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2000},
     year = {2000},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2000__2000__a88/}
}