%0 Journal Article %A Pierre Kaplan %A Kenneth Williams %T Congruences modulo 16 for the class numbers of the quadratic fields Q(ñp) and Q(ñ2p) for p a prime congruent to 5 modulo 8 %J Acta Arithmetica %D 1981 %P 375-397 %V 40 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-40-4-375-397/ %R 10.4064/aa-40-4-375-397 %G en %F 10_4064_aa_40_4_375_397