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@article{DAN_1974_216_6_a6, author = {G. Kh. Todorova}, title = {Formal group laws for elliptic curves over a local field}, journal = {Doklady Akademii Nauk}, pages = {1229--1232}, publisher = {mathdoc}, volume = {216}, number = {6}, year = {1974}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1974_216_6_a6/} }
G. Kh. Todorova. Formal group laws for elliptic curves over a local field. Doklady Akademii Nauk, Tome 216 (1974) no. 6, pp. 1229-1232. http://geodesic.mathdoc.fr/item/DAN_1974_216_6_a6/