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@article{JRAM_1962__209_150507, author = {A. Fr\"ohlich and J. Tate and J.-P. Serre}, title = {A different with an odd class.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {6--7}, publisher = {mathdoc}, volume = {209}, year = {1962}, zbl = {0105.02903}, url = {http://geodesic.mathdoc.fr/item/JRAM_1962__209_150507/} }
A. Fröhlich; J. Tate; J.-P. Serre. A different with an odd class.. Journal für die reine und angewandte Mathematik, Tome 209 (1962), pp. 6-7. http://geodesic.mathdoc.fr/item/JRAM_1962__209_150507/