TY - JOUR AU - K.H. Kim AU - F.W. Roush TI - The Williams conjecture is false for irreducible subshifts JO - Annals of mathematics PY - 1999 VL - 149 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.2307/120975/ DO - 10.2307/120975 ID - 10_2307_120975 ER -