1. Invariants and Canonical Forms under Dynamic Compensation
2. (3) L. M. Silverman: “Inversion of Multivariable Linear Systems”, IEEE Trans. Automatic Control, Vol. 14, No. 3, pp. 270-276 (1969)
3. (4) A. S. Morse: “System Invariants under Feedback and Cascade Control”, in Lecture Note in Economics and Mathematical Systems, Vol. 131, pp. 61-74, Springer-Verlag, Berlin (1976)
4. (5) R. W. Rogozinski, A. P. Paplinski, and M. J. Gibbard: “An Algorithm for the Calculation of a Nilpotent Interactor Matrix for Linear Multivariable Systems”, IEEE Trans. Automatic Control, Vol. 32, No. 3, pp. 234-237 (1987)