%0 Journal Article %A G. Pall %A Hubert Butts %T Modules and binary quadratic forms %J Acta Arithmetica %D 1968 %P 23-44 %V 15 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-15-1-23-44/ %R 10.4064/aa-15-1-23-44 %G en %F 10_4064_aa_15_1_23_44