1. Dynamic Programming and the Variational Principles of Classical and Statistical Mechanics;Kalaba,1961
2. Invariant imbedding applied to eigenvalue problems in mechanics;Shoemaker;J. Appl. Mech.,1965
3. D. W. Alspaugh, H. H. Kagiwada, and R. Kalaba, Dynamic Programming, Invariant Imbedding, and Thin Beam Theory, To appear in the Inter. J. of Eng. Sciences.
4. Some recent developments in invariant imbedding with applications;Bailey;J. Math. Phys.,1965
5. Transport theory and invariant imbedding;Bellman,1961