1. 1Curtis, A. R. “Active Control of Fan Noise by Vane Actuators,” Tech. Rep. NASA/CR-1999-209156, NASA, Glenn Research Center, May 1999.
2. 2Frederic, G. P., Ziqiang, H., and Sutliff, D. “Active Control of Fan Noise : Feasibility Study,” Tech. Rep. NASA/TM- 1996-198511, NASA, Lewis Research Center, September 1996.
3. Active aerodynamic control of wake-airfoil interaction noise - Experiment
4. Dipole Active Control of Wake-Blade Row Interaction Noise
5. Active control of fan noise from a turbofan engine