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@article{DAN_1957_114_2_a8, author = {I. R. Shafarevich}, title = {Birational equivalence of elliptical curves}, journal = {Doklady Akademii Nauk}, pages = {267--270}, publisher = {mathdoc}, volume = {114}, number = {2}, year = {1957}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1957_114_2_a8/} }
I. R. Shafarevich. Birational equivalence of elliptical curves. Doklady Akademii Nauk, Tome 114 (1957) no. 2, pp. 267-270. http://geodesic.mathdoc.fr/item/DAN_1957_114_2_a8/