The Williams conjecture is false for irreducible subshifts.
Kim, K.H. ; Roush, F.W.
Electronic Research Announcements of the American Mathematical Society [electronic only], Tome 3 (1997), p. 105-109 / Harvested from The Electronic Library of Mathematics
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Publié le : 1997-01-01
DOI : https://doi.org/10.1090/S1079-6762-97-00032-2
EUDML-ID : urn:eudml:doc:225260 
@article{01108907,
     title = {The Williams conjecture is false for irreducible subshifts.},
     journal = {Electronic Research Announcements of the American Mathematical Society [electronic only]},
     volume = {3},
     year = {1997},
     pages = {105-109},
     doi = {10.1090/S1079-6762-97-00032-2},
     zbl = {0887.58014},
     language = {en},
     url = {http://dml.mathdoc.fr/item/01108907}
}

Kim, K.H.; Roush, F.W. The Williams conjecture is false for irreducible subshifts.. Electronic Research Announcements of the American Mathematical Society [electronic only], Tome 3 (1997) pp. 105-109. doi : 10.1090/S1079-6762-97-00032-2. http://gdmltest.u-ga.fr/item/01108907/