TY - JOUR AU - Y. Ihara TI - On Galois representations arising from towers of coverings of P1 ... . JO - Inventiones mathematicae PY - 1986 SP - 427 EP - 460 VL - 86 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM_1986__86_143401/ ID - IM_1986__86_143401 ER -