1. M. Blum and C. Hewitt, Automata on a 2-dimensional tape, Proc. SWAT, 8th pp. 155–160 (1967).
2. A region crossing problem for array-bounded automata;Milgram;Information and Control,1976
3. Web automata;Milgram;Information and Control,1975
4. On the recognition of topological invariants by 4-way finite automata;Mylopoulos;Comput. Graphics Image Processing,1972
5. D. L. Milgram and A. Rosenfeld, Array automata and array grammars, “IFIP Congress 71.” North-Holland, Amsterdam, pp. 69–74 (1972).