From the Nyquist Criterion to the Circle CriterionSepulchre, R.; Aeyels, D.; Willems, J.L. · IFAC Proceedings Volumes · 1996

Pole assignment for linear periodic systems by memoryless output feedbackAeyels, D.; Willems, J.L. · IEEE Transactions on Automatic Control · 1995

[IEEE 30th IEEE Conference on Decision and Control - Brighton, UK (11-13 Dec. 1991)] [1991] Proceedings of the 30th IEEE Conference on Decision and Control - Towards pole assignment for linear time-invariant systems by periodic static output feedbackAeyels, D.; Willems, J.L. · 1991

[IEEE 32nd IEEE Conference on Decision and Control - San Antonio, TX, USA (15-17 Dec. 1993)] Proceedings of 32nd IEEE Conference on Decision and Control - Pole assignment for linear periodic second order systems by means of periodic memoryless output feedbackAeyels, D.; Willems, J.L. · 1993