References
- BELLMAN , R. , 1957 , Dynamic Programming ( Princeton , New Jersey Princeton University Press ).
- FAN , L. T. , and WANG , C. S. , 1964 , The Discrete Maximum Principle—A Stvdy of Multistage Systems Optimization ( New York John Wiley ).
- WANG , C. S. , and FAN , L. T. , 1964 ,. J. Electron. Contr., 17 , 199 .
- †Communicated by the Authors