1. Lectures on the Calculus of Variations;Bliss,1946
2. L. S. Pontriagin's maximum principle in the theory of optimum systems, I;Rosonoer;Automation and Remote Control,1959
3. L. S. Pontriagin's maximum principle in the theory of optimum systems, I;Rosonoer;Automation and Remote Control,1959
4. L. S. Pontriagin's maximum principle in the theory of optimum systems, I;Rosonoer;Automation and Remote Control,1959
5. A maximum principle for stochastic control systems;Kushner;J. Math. Anal. Appl.,1964