1. Athans, M. (eds.): Special issue on the linear-quadratic-Gaussian estimation and control problem. IEEE Transactions on Automatic Control, AC-16, 527–547 (1971).
2. Benes, V.E.: Quadratic approximation by linear systems controlled from partial observations. Proc. Internat. Symp. in honor of M. Zakai, 1991.
3. Benes, V.E. and Karatzas, I.: Examples of optimal control for partially observable systems: Comparison, classical and martingale methods, Stochastics, 5, 43–64 (1981).
4. Benes, V.E. and Karatzas, I.: Estimation and control for linear partially observable systems with non-Gaussian initial distribution. Stochastic Processes and their Applications, 14, 233–248 (1983).
5. Proc. Workshop on Appl. Stoch. Analysis;VE Benes,1989