1. Åström KJ (1970) Introduction to stochastic control theory. Academic Press
2. Hastings-James R (1970) A linear stochastic controller for regulation of systems with pure time delay. University of Cambridge, Department of Engineering, Research Report No CN/70/3
3. Clarke DW, Hastings-James R (1971) Design of digital controllers for randomly disturbed systems. IEE Proc 118(10):1503–1506
4. Clark DW, Gawthrop PJ (1975) Self-tuning controllers. IEE Proc 122(9):929–934
5. Kucera V (1979) Discrete linear control. Wiley, Chichester