%0 Journal Article %A Larsen, Michael %A Shalev, Aner %T Word maps and Waring type problems %J Journal of the American Mathematical Society %D 2009 %P 437-466 %V 22 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-08-00615-2/ %R 10.1090/S0894-0347-08-00615-2 %F 10_1090_S0894_0347_08_00615_2