TY - JOUR AU - Henri Johnston TI - On the trace map between absolutely abelian number fields of equal conductor JO - Acta Arithmetica PY - 2006 SP - 63 EP - 74 VL - 122 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa122-1-7/ DO - 10.4064/aa122-1-7 LA - en ID - 10_4064_aa122_1_7 ER -