REFERENCES
- Crochemore , M. , Mignosi , F. , Restivo , A. ( 1998 ). Automata and forbidden words . Information Processing Letters 68 ( 3 ): 111 – 117 .
- Harju , T. , Ilie , L. ( 2005 ). Languages obtained from infinite words . RAIRO Inform. Théor. Appl. 30 ( 5 ): 445 – 455 .
- Kellendonk , J. ( 1997 ). Topological equivalence of tiling . Journal of Mathematical Physics 38 ( 4 ): 1133 – 1180 .
- Lawson , M. V. ( 1998 ). Inverse Semigroups: The Theory of Partial Symmetries . Singapore : World Scientific .
- Lawson , M. V. ( 2004 ). One-dimensional tiling semigroups . Semigroup Forum 68 : 159 – 176 .
- Marcus , S. , Păun , S. ( 1994 ). Infinite (almost periodic) words, formal languages, and dynamical systems . The Bulletin of EATCS 54 : 224 – 231 .
- McAlister , D. B. ( 2004 ). A note on 0 − E-unitary inverse semigroups. Unpublished preprint .
- McAlister , D. B. ( 2003 ). Inverse semigroups and tilings. Manuscript of talk given at CAUL, April 18 .
- McAlister , D. B. ( 2004 ). An introduction to E*-unitary inverse semigroups—From an old-fashioned perspective . In: Araújo , I. M. , Branco , M. J. J. , Fernandes , V. H. , Gomes , G. M. S. , eds. Proceedings of the Workshop Semigroups and Languages . Singapore : World Scientific , pp. 133 – 150 .
- McAlister , D. B. , Reilly , N. R. ( 1977 ). E-unitary covers for inverse semigroups . Pacific J. Math. 68 : 161 – 174 .
- McNaughton , R. , Papert , S. ( 1970 ). Counter-Free Automata . Cambridge , MA : MIT Press .
- Munn , W. D. ( 1976 ). A note on E-unitary inverse semigroups . Bull. London Mat. Soc. 8 : 71 – 76 .
- Perrin , D. ( 1997 ). Words . In: Lothaire , M. , ed. Combinatorics on Words . Cambridge : Cambridge University Press , pp. 1 – 17 .
- Soares , F. ( 2005 ). Semigrupos de Pavimentações . Master's thesis , University of Lisbon , Lisbon , Portugal .
- Yu , S. ( 1997 ). Regular languages . In: Rozenberg , G. , Salomaa , A. , eds. Handbook of Formal Languages . Berlin : Springer , pp. 41 – 110 .
- Communicated by V. Gould.