%0 Journal Article %A Franz Lemmermeyer %T Kuroda's class number formula %J Acta Arithmetica %D 1994 %P 245-260 %V 66 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-66-3-245-260/ %R 10.4064/aa-66-3-245-260 %G en %F 10_4064_aa_66_3_245_260