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      Scientific American January 1983

      Metamagical Themas, January 1983

      Virus-like sentences and self-replicating structures

      • By Douglas R. Hofstadter on January 1, 1983

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      More in the January 1983 issue of Scientific American
      • Books, January 1983
      • Science and the Citizen, January 1983
      • Letters to the Editors, January 1983
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