%0 Journal Article %A Ladislav Skula %T Another proof of Iwasawa's class number formula %J Acta Arithmetica %D 1981 %P 1-6 %V 39 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-39-1-1-6/ %R 10.4064/aa-39-1-1-6 %G en %F 10_4064_aa_39_1_1_6