TY - JOUR AU - Stéphane R. Louboutin TI - Lower bounds for relative class numbers of imaginary abelian number fields and CM-fields JO - Acta Arithmetica PY - 2006 SP - 199 EP - 220 VL - 121 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa121-3-1/ DO - 10.4064/aa121-3-1 LA - en ID - 10_4064_aa121_3_1 ER -