1. Minimal Flows and Their Extensions;Auslander,1988
2. Topological and Symbolic Dynamics;Kůrka,2003
3. Decidability and universality in symbolic dynamical systems;Delvenne;Fundam. Inform.,2006
4. V. Salo, Quasiminimality, compactness and derivatives of subshifts, in preparation.
5. An Introduction to Symbolic Dynamics and Coding;Lind,1995