TY - JOUR AU - Belliard, Jean-Robert TI - Global Units Modulo Circular Units: Descent Without Iwasawa’s Main Conjecture JO - Canadian journal of mathematics PY - 2009 SP - 518 EP - 533 VL - 61 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-2009-027-0/ DO - 10.4153/CJM-2009-027-0 ID - 10_4153_CJM_2009_027_0 ER -