%0 Journal Article %A S. Batterson %A M. Handel %A C. Narasimhan %T Orientation Reversing Morse-Smale Diffeomorphisms of S2. %J Inventiones mathematicae %D 1981 %P 345-356 %V 64 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1981__64_142825/ %F IM_1981__64_142825