%0 Journal Article %A Maohua Le %T Upper bounds for class numbers of real quadratic fields %J Acta Arithmetica %D 1994 %P 141-144 %V 68 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-68-2-141-144/ %R 10.4064/aa-68-2-141-144 %G en %F 10_4064_aa_68_2_141_144