%0 Journal Article %A Kassabov, Martin %T Symmetric groups and expanders %J Electronic research announcements of the American Mathematical Society %D 2005 %P 47-56 %V 11 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1090/S1079-6762-05-00146-0/ %R 10.1090/S1079-6762-05-00146-0 %F ERAAMS_2005_11_a5