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@article{CM_1991__80_2_171_0, author = {Jaffe, David B.}, title = {On sections of commutative group schemes}, journal = {Compositio Mathematica}, pages = {171--196}, publisher = {Kluwer Academic Publishers}, volume = {80}, number = {2}, year = {1991}, mrnumber = {1132092}, zbl = {0781.14035}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CM_1991__80_2_171_0/} }
Jaffe, David B. On sections of commutative group schemes. Compositio Mathematica, Tome 80 (1991) no. 2, pp. 171-196. http://geodesic.mathdoc.fr/item/CM_1991__80_2_171_0/