1. Theory of Hierarchial, Multilevel Systems;Mesarovic,1970
2. Gradient Technique and Lagrange Multiplier - a Technique for Optimizing Complex Processes;Lee;Canad. J. of Chemical Engineering,1969
3. Large-Scale Linear Programming;Dantzig,1967
4. Optimization: Theory and Practice;Beveridge,1970
5. Dynamic Programming;Bellman,1957