1. R. L. Dailey and M. S. Lukich, “Recent results in identification and control of a flexible truss structure”, Proc Amer Control Conf, Georgia, 1988, pp 1468–1473.
2. J. C. Doyle, “Guaranteed margins in LQG Regulators”, IEEE Trans Auto Control, Vol AC-23, 1978, pp 664–665.
3. J. C. Doyle, J. E. Wall and G. Stein, “Performance and robustness analysis for structured uncertainty”, Proc IEEE Conf on Decision and Control, Orlando, 1982, pp 629–634.
4. K. Glover and D. McFarlane, “Robust stabilization of normalized coprime factor plant descriptions with–bounded uncertainty”, IEEE Trans Auto Control, Vol 34, 1989, pp 821–830.
5. G. C. Goodwin and K. S. Sin, Adaptive Filtering, Prediction and Control, Prentice Hall, New Jersey, 1984