%0 Journal Article %A Fabrice Bethuel %A Giandomenico Orlandi %A Didier Smets %T Vortex rings for the Gross-Pitaevskii equation %J Journal of the European Mathematical Society %D 2004 %P 17-94 %V 6 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4171/jems/2/ %R 10.4171/jems/2 %F JEMS_2004_6_1_a1