1. Ferreres, G., A Practical Approach to Robustness Analysis with Aeronautical Applications, Kluwer Academic, New York, 1999.
2. Doll, C., Ferreres, G., and Magni, J. F., “μ tools for flight control robustness assessment” Aerospace Science and Technology, No. 3, pp. 177–189, 1999.
3. Skogestad, S. and Postlethwaite, I., Multivariable Feedback Control, Wiley, 1996.
4. Doyle, J. C., “Analysis of feedback systems with structured uncertainty”, IEE Proceedings on Control Theory and Applications, Part D, 129(6), pp. 242–250, 1982.
5. Doyle, J. C. Lecture Notes on Advances in Multivariable Control, ONR/Honeywell Workshop, Minneapolis, 1984.