1. A.B. Baggeroer, State Variables and Communication Theory, Research Monograph, Vol. 61, MIT Press, Cambridge, MA, 1970, pp. 8–22 (Chapter 2).
2. V.K. Ingle, J.G. Proakis, Digital Signal Processing Using MATLAB V.4, PWS Publishing Company, New York, 1997, pp. 301–372 (Chapter 8).
3. Some new algorithms for recursive estimation in constant linear systems;Kailath;IEEE Trans. Automat. Control,1973
4. Lectures on Wiener and Kalman Filtering;Kailath,1981
5. Recursive input-output and state-space solutions for continuous-time linear estimation problems;Kailath;IEEE Trans. Automat. Control,1983