(2004). Semigroups and languages: Proceedings of the workshop Lisboa, Portugal 27-29 November 2002. New Jwrsey: World Scientific.
Chicago Stili AlıntıSemigroups and Languages: Proceedings of the Workshop Lisboa, Portugal 27-29 November 2002. New Jwrsey: World Scientific, 2004.
MLA AlıntıSemigroups and Languages: Proceedings of the Workshop Lisboa, Portugal 27-29 November 2002. New Jwrsey: World Scientific, 2004.
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