1. Contributions to the theory of optimal control;Kalman;Bol. de la Soc. Matem. Mexicana,1960
2. New results in linear filtering and prediction theory;Kalman;J. Basic Eng,1961
3. Stochastic problems in optimal control;Wonham;IEEE Convention Record,1963
4. Sensitivity improvement using optimal design;Anderson,1966
5. On the reduction of sensitivity in multivariate systems;Porter;Int. J. of Control,1967