%0 Journal Article
%A Tsutomu Shimada
%T Index for subgroups of the group of units in number fields
%J Acta Arithmetica
%D 1998
%P 249-263
%V 85
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/aa-85-3-249-263/
%R 10.4064/aa-85-3-249-263
%G en
%F 10_4064_aa_85_3_249_263