%0 Journal Article %A Z. Ran %T Enumerative geometry of singular plane curves. %J Inventiones mathematicae %D 1989 %P 447-466 %V 97 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1989__97_2_143710/ %F IM_1989__97_2_143710