%0 Journal Article %A W.L. Hill %T Formal Groups and Zeta-Functions of Elliptic Curves. %J Inventiones mathematicae %D 1971 %P 321-336 %V 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1971__12_142082/ %F IM_1971__12_142082