@article{GDZPPN00208905X, title = {Formal Groups and Zeta-Functions of Elliptic Curves.}, journal = {Inventiones mathematicae}, volume = {14}, year = {1971}, pages = {321-336}, zbl = {0209.24602}, url = {http://dml.mathdoc.fr/item/GDZPPN00208905X} }
Hill, W.L. Formal Groups and Zeta-Functions of Elliptic Curves.. Inventiones mathematicae, Tome 14 (1971) pp. 321-336. http://gdmltest.u-ga.fr/item/GDZPPN00208905X/