428 c c File: keller5.clq c Source Peter Shor (AT&T Bell Laboratories) shor@research.att.com c Reference: c J.C. Lagarias and P.W. Shor, "Keller's cube-packing conjecture is c false in high dimensions, " Bull. AMS (New Series), Vol. 27, No. 2, c 279-283, 1992. c c K. Corradi and S. Szabo, "A combinatorial appraoch for Keller's conjecture," c Period. Math. Hungar. 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