1. A New Approach to the Sensitivity Problem in Multivariable Feedback System Design;Cruz;IEEE Trans. on A.C.,1964
2. The Parameter Variation Problem in State Feedback Control System;Perkins;Trans. ASME,1965
3. Sensitivity Comparison of Open-Loop and Closed-Loop Systems;Cruz,1965
4. Sensitivity Operators for Linear Time-Varying Systems;Perkins,1964
5. An Approach to the Time-Varying Sensitivity Problem;Anderson,1966