%0 Journal Article %A Takeuchi, Hiroshi %T On the Class-Number of the Maximal Real Subfield of a Cyclotomic Field %J Canadian journal of mathematics %D 1981 %P 55-58 %V 33 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1981-006-8/ %R 10.4153/CJM-1981-006-8 %F 10_4153_CJM_1981_006_8