Automata studies - Ashby, W. Ross; Culbertson, J. T; Davis, M. D; Kleene, Stephen Cole; Leeuw, Karel de; Mac Kay, D. M; Mc Carthy, J; Minsky, M. L; Moore, E. F; Shannon, C. E; Shapiro, N; Uttley, A. M (Annals of Mathematics Studies, 34, 1956)