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From Trekipedia
Cree, Graeme. "SN1: The Time Warp." Star Fleet Battles Commander's Edition Update #2. Designed by Stephen V. Cole. Task Force Games. 25 November 1988. Originally published as "500: The Time Warp" in Nexus Magazine Vol. 1 No. 1, April-May 1982 for the Star Fleet Battles Designer's Edition.