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@article{JRAM_1974__266_151425, author = {Alan McConnell}, title = {Polynomial subfields of k (x).}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {136--139}, publisher = {mathdoc}, volume = {266}, year = {1974}, zbl = {0281.12103}, url = {http://geodesic.mathdoc.fr/item/JRAM_1974__266_151425/} }
Alan McConnell. Polynomial subfields of k (x).. Journal für die reine und angewandte Mathematik, Tome 266 (1974), pp. 136-139. http://geodesic.mathdoc.fr/item/JRAM_1974__266_151425/