1. On the general theory of control systems;Kalman,1960
2. New results in linear filtering and prediction theory;Kalman;J. Basic Eng., Trans. ASME,1961
3. Mathematical description of linear dynamical systems;Kalman;SIAM J. Control,1963
4. When is a linear control system optimal?;Kalman;J. Basic Eng., Trans. ASME,1964
5. A new approach to the sensitivity problem in multivariable feedback system design;Kruz;IEEE Trans. Auto. Control,1964