1. The reproducibility of multivariable systems
2. Invertibility of linear time-invariant dynamical systems
3. J. P. Norton, An Introduction to Identification (Acad. Press, London, 1986).
4. H. Unbehauen and G. P. Rao, Identification of Continuous Systems (North-Holland Publishing Co., Amsterdam, 1987).
5. L. Ljung and T. Söderström T, Theory and Practice of Recursive Identification (M.I.T. Press, Cambridge 1983).