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Apr 19, 2011 at 6:24 vote accept Franz Lemmermeyer
Apr 15, 2011 at 22:35 comment added Martin Bright I should point out that Coray & Tsfasman attribute the proof that a cubic surface with three singularities is rational to Segre (J. LMS, 1944).
Apr 15, 2011 at 22:18 history answered Martin Bright CC BY-SA 3.0