1. Anderson, B.D.O. and Moore, J.L. (1979), "Optimal Filtering", Prentice Hall.
2. Astrom, K.J. (1970), "Introduction to Stochastic Control Theory", Academic Press.
3. Cwiklinski, R.R. and Brosilow, C.B. (1977), "Inferential Control of An Industrial Depropanizer", Proc. JACC, pp 1530–1536.
4. D'Hulster, F.M. and van Cauwenberghe, A.R. (1981), "Applications of Parameter Adaptive Inferential Control to Non-Continuously Measurable Quality Variables", Proc. 2nd World Congress on Chemical Engineering, Montreal, pp 378–380.
5. Dochain D. and Bastin G. (1984), "Adaptive identification and control algorithms for nonlinear bacterial growth systems." Automatica, 20, pp 621–634.