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Dec 14, 2011 at 7:50 vote accept Dirk
Dec 7, 2011 at 23:16 answer added Kevin P. Costello timeline score: 3
Dec 7, 2011 at 20:31 answer added Igor Rivin timeline score: 4
Dec 7, 2011 at 20:26 history asked Dirk CC BY-SA 3.0