@article{IM_1992__110_2_144045,
     author = {Henri Darmon},
     title = {A refined cojecture of {Mazur-Tate} type for {Heegner} points.},
     journal = {Inventiones mathematicae},
     pages = {123--146},
     publisher = {mathdoc},
     volume = {110},
     number = {2},
     year = {1992},
     zbl = {0781.11023},
     url = {http://geodesic.mathdoc.fr/item/IM_1992__110_2_144045/}
}