%0 Journal Article %A David R. Dorman %T Singular Moduli, Modular Polynomials, and the Index of the Closure of Z [j (...)] in Q (j(...)). %J Mathematische Annalen %D 1989 %P 177-192 %V 283 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1989__283_1_164502/ %G en %F MAN_1989__283_1_164502