@article{JRAM_1984__355_152694,
     author = {B.H. Gross and Don B. Zagier},
     title = {On singular moduli.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {191--220},
     publisher = {mathdoc},
     volume = {355},
     year = {1984},
     zbl = {0545.10015},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1984__355_152694/}
}