1. Adaptive Filtering Prediction and Control;Goodwin,1984
2. A filter using Chandrasekhar's X and Y functions for linear stationary discrete-time systems;Sugisaka,1988
3. Digital Chandrasekhar filter and smoother based on state-space model;Sugisaka,1986
4. Adaptive digital Chandrasekhar filter based on the state-space model;Sugisaka,1987