1. \bysame, A survey of the theory of time-lag, retarded control and hereditary processes, RAND Report No. R-271, 1954.
2. Some functional equations in the theory of dynamic programming. I. Functions of points and point transformations;Bellman, R.;Trans. Amer. Math. Soc.,1955
3. \bysame, On a new iterative algorithm for finding the solutions of games and linear programming problems, Symposium on Monte Carlo Methods, University of Florida, March, 1954.
4. R. Bellman and J. LaSalle, Non-zero sum games and stochastic processes, RAND Memorandum No. RM-271, 1949.