1. Automatic Feedback Control System Synthesis;TRUXAL,1955
2. Synthesis of Feedback Systems;HOROWITZ,1963
3. The Analysis and Synthesis of Linear Time-Variable Systems;STUBBERUD,1964
4. Feedback and Control Systems;STUBBERUD,1967
5. “A New Approach to the Sensitivity Problem in Multivariable Feedback System Design,”;CRUZ;IEEE Transactions on Automatic Control,1964