1. A Course in Simple Homotopy Theory;Cohen,1973
2. Isolated Invariant Sets and the Morse Index;Conley,1978
3. Isolated invariant sets and isolating blocks;Conley;Trans. Amer. Math. Soc.,1971
4. Sofic systems;Coven;Israel J. Math.,1975
5. Fixed point index and fixed point theorem for Euclidean neighborhood retracts;Dold;Topology,1965