TY - JOUR AU - Bernhard Schmidt TI - The field descent and class groups of $CM$-fields JO - Acta Arithmetica PY - 2005 SP - 291 EP - 306 VL - 119 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa119-3-4/ DO - 10.4064/aa119-3-4 LA - en ID - 10_4064_aa119_3_4 ER -