%0 Journal Article
%A Keiji Okano
%T Abelian $p$-class field towers over the cyclotomic
 $\mathbb {Z}_p$-extensions of imaginary quadratic fields
%J Acta Arithmetica
%D 2006
%P 363-381
%V 125
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/aa125-4-5/
%R 10.4064/aa125-4-5
%G en
%F 10_4064_aa125_4_5