1. Elements of a theory of computer simulation I: Sequential CA over random graphs;Barrett;Appl. Math. Comput.,1999
2. Elements of a theory of computer simulation II: sequential dynamical systems;Barrett;Appl. Math. Comput.,2000
3. Elements of a theory of computer simulation III: equivalence of SDS;Barrett;Appl. Math. Comput.,2001
4. On some special classes of sequential dynamical systems;Barrett;Ann. Comb.,2003
5. Reachability problems for sequential dynamical systems with threshold functions;Barrett;Theoret. Comput. Sci.,2003