1. “A Markovian Decision Process”;Bellman;Journal of Mathematics and Mechanics,1957
2. Blackwell, D., “Positive Dynamic Programming”, in Proceedings of Fifth Berkeley Symposium on Mathematical Statistics and Probability, Vol. 1, University of California Press, Berkeley, California, pp. 415–418, 1967.
3. “Discrete Dynamic Programming”;Blackwell;Ann. Math. Stat.,1962
4. “A Generalization of the Linear Complementarity Problem”;Cottle;Journal of Combinatorial Theory,1970
5. “Contraction Mappings in the Theory Underlying Dynamic Programming”;Denardo;SIAM Review,1967