TY - JOUR AU - P. Schneider TI - Arithmetic of formal groups and applications I: Universal norm subgroups. JO - Inventiones mathematicae PY - 1987 SP - 587 EP - 602 VL - 87 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM_1987__87_143437/ ID - IM_1987__87_143437 ER -