%0 Journal Article %A He, Xuhua %A Lusztig, George %T A generalization of Steinberg’s cross section %J Journal of the American Mathematical Society %D 2012 %P 739-757 %V 25 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-2012-00728-0/ %R 10.1090/S0894-0347-2012-00728-0 %F 10_1090_S0894_0347_2012_00728_0