%0 Journal Article %A Timo Lepistö %T On the first factor of the class number of the cyclotomic field and Dirichlet's L-functions %J Annales Fennici Mathematici %D 1966 %V 371-390 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1966.387/ %R 10.5186/aasfm.1966.387 %G en %F AFM_1966_371-390_a3