%0 Journal Article %A Henri Darmon %T A refined cojecture of Mazur-Tate type for Heegner points. %J Inventiones mathematicae %D 1992 %P 123-146 %V 110 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1992__110_2_144045/ %F IM_1992__110_2_144045