%0 Journal Article %A Williams, Kenneth S. %A Currie, James D. %T Class Numbers and Biquadratic Reciprocity %J Canadian journal of mathematics %D 1982 %P 969-988 %V 34 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1982-070-x/ %R 10.4153/CJM-1982-070-x %F 10_4153_CJM_1982_070_x