National Instruments NI MATRIXx Xmath - Manual (Page 123)

Appendix A Bibliography
© National Instruments Corporation A-5 Xmath Model Reduction Module
[SLH81] M. G. Safonov, A. J. Laub, and G. L. Hartmann, “Feedback Properties of Multivariable
Systems: The Role and Use of the Return Difference Matrix,” IEEE Transactions on
Automatic Control, Vol. AC-26, February 1981.
[SA88] G. Stein and M. Athans. “The LQG/LTR Procedure for Multivariable Control Design,”
IEEE Transactions on Automatic Control, Vol. AC-32, No. 2, February 1987, pp.
105–114.
[Za81] G. Zames, “Feedback and optimal sensitivity: model reference transformations,
multiplicative semi-norms, and approximate inverses,” IEEE Transactions on Automatic
Control, Vol. AC-26, pp. 301–320, 1981.
[KS72] H. Kwakernaak and R. Sivan, Linear Optimal Control Systems, Wiley, 1972.