wichita.edu
…Leitner, and F.L. Markley, “On the Control Design of the Disturbance Reduction System for the LISA Mission,” Proceedings of the AIAA Guidance, Navigation, and Control Conference, Monterey, CA, August 2002. Nelson, J. Watkins, and G. Piper, “Active Control of Fan Noise in Ducts Using Magnetic Bearings,” Proceedings of the 8th AIAA/CEAS Aeroacoustics…
https://www.wichita.edu/profiles/academics/engineering/ECE/01_Faculty/Watkins-John.php