1. Altman, E.: Constrained Markov Decision Processes. Chapman & Hall, New York 1999
2. Bellman, R.E.: Dynamic Programming. Princeton University Press, Princeton, NJ 1957
3. Bellman, R.E.: Some Vistas of Modern Mathematics. University of Kentuky Press, Lexington, KY 1968
4. Blackwell, D.: Discounted dynamic programming. Ann. Math. Stat. 36, 226–235 (1965)
5. Denardo, E.V.: Contraction mappings in the theory underlying dynamic programming. SIAM Review 9, 165–177 (1968)