%0 Journal Article %A Humio Ichimura %T Normal integral bases and ray class groups %J Acta Arithmetica %D 2004 %P 71-85 %V 114 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa114-1-5/ %R 10.4064/aa114-1-5 %G en %F 10_4064_aa114_1_5