1. Atkin, A.O.L., Lehner, J.: Hecke operators onF o(m). Math. Ann.185, 134?160 (1970)
2. Carayol, H.: Sur la mauvaise réduction des courbes de Shimura. Compos. Math.59, 151?230 (1986)
3. Cerednik, I.V.: Uniformization of algebraic curves by discrete arithmetic subgroups of PGL2(k w ) with compact quotients (in Russian). Math. Sb.100, 59?88 (1976). Translation in Math. USSR Sb.29, 55?78 (1976)
4. Lecture Notes in Math.;P. Deligne,1973
5. Deligne, P., Serre, J.-P.: Formes modulaires de poids 1. Ann. Sci. Ec. Norm. Sup., IV. Ser.7, 507?530 (1974).