1. Aris, R., D. F. Rudd, andN. R. Amundson, Chem. Eng. Sci.,12, 88 (1960).
2. Aris, R.,The Optimal Design of Chemical Reactors (Academic Press, New York, 1961).
3. Rudd, D. F., I. & E. C. Fundamentals,1, 138 (1962).
4. Bellman, R.,Dynamic Programming (Princeton University Press, New Jersey, 1957).
5. Pontryagin, L. S., V. G. Boltyanskii, R. V. Gamkrelidze, andE. F. Mishchenko,The Mathematical Theory of Optimal Processes (English translation byTrirogoff, K. N.) (Interscience Publishers, New York, 1962).