%0 Journal Article %A Franz Lemmermeyer %T Ideal class groups of cyclotomic number fields III %J Acta Arithmetica %D 2008 %P 255-266 %V 131 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa131-3-3/ %R 10.4064/aa131-3-3 %G en %F 10_4064_aa131_3_3