%0 Journal Article %A Jean Van Schaftingen %A Michel Willem %T Symmetry of solutions of semilinear elliptic problems %J Journal of the European Mathematical Society %D 2008 %P 439-456 %V 10 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4171/jems/117/ %R 10.4171/jems/117 %F JEMS_2008_10_2_a6