%0 Journal Article %A Wei-Ping Li %T On Donaldson polynomials of rational ruled surfaces. %J Forum mathematicum %D 1996 %P 737-759 %V 8 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/FORUM_1996__8_3_141789/ %F FORUM_1996__8_3_141789