%0 Journal Article %A Kenneth Williams %T On the class number Q(√-p) modulo 16, for p ≡ 1 (mod 8) a prime %J Acta Arithmetica %D 1981 %P 381-398 %V 39 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-39-4-381-398/ %R 10.4064/aa-39-4-381-398 %G en %F 10_4064_aa_39_4_381_398