%0 Journal Article %A O. Körner %T Class numbers of binary quadratic lattices over algebraic number fields %J Acta Arithmetica %D 1981 %P 269-279 %V 39 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-39-3-269-279/ %R 10.4064/aa-39-3-269-279 %G en %F 10_4064_aa_39_3_269_279