TY - JOUR TI - Hecke Algebras and Class-Group Invariants JO - Canadian journal of mathematics PY - 1997 SP - 1265 EP - 1280 VL - 49 IS - 6 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1997-062-x/ DO - 10.4153/CJM-1997-062-x ID - 10_4153_CJM_1997_062_x ER -