%0 Journal Article %A Martin Eichler %T New formulas for the class number of imaginary quadratic fields %J Acta Arithmetica %D 1987 %P 35-43 %V 49 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-49-1-35-43/ %R 10.4064/aa-49-1-35-43 %G en %F 10_4064_aa_49_1_35_43