%0 Journal Article %T Une variante d'un r¨¦sultat de Aizenbud, Gourevitch, Rallis et Schiffmann %A Jean-Loup Waldspurger %J Mathematics %D 2009 %I arXiv %X Aizenbud, Gourevitch, Rallis and Schiffmann proves results of multicity one in different cases, in particular for orthogonal groups. Using the same method, we prove the same result for special orthogonal groups. %U http://arxiv.org/abs/0911.1618v1