1. Ahmed NU. Linear and Nonlinear Filtering for Scientists and Engineers. Singapore: World Scientific Publishers; 1999
2. Bagchi A. Optimal Control of Stochastic Systems. New York: Prentice-Hall; 1993
3. Bryson AE, Ho YC. Applied Optimal Control. New York: Hemisphere Publishing Company; 1975
4. Bryson AE. Applied Linear Optimal Control, Examples and Algorithms. UK: Cambridge University Press; 2002
5. Kalman RE. Contributions to the theory of optimal control. Boletín de la Sociedad Matemática Mexicana. 1960;5:102-119