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  • (cur | prev) 11:01, 28 August 2009โ€Ž Yunglu (Talk | contribs)โ€Ž . . (160 bytes) (+160)โ€Ž . . (New page: A very interesting paper by Demaine, Hohenberger, and Liben-Nowell [http://www.springerlink.com/content/cpb74bmbw5q6gy7n/ "Tetris is Hard, Even to Approximate"])

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