1. NASA CR 2987;JE Yates,1978
2. NASA CR 3139;JE Yates,1979
3. Aerodynamic Noise;A Powell,1963
4. Hardin, J.C., “Noise Calculation on the Basis of Vortex Flow Models,” presented at ASME Symposium on Noise and Fluids Engineering, Atlanta, GA., Nov. 28–30, 1977.
5. Bechert, D., and E. Pfizenmaier, “On the Amplification of Broadband Jet Noise by a Pure Tone Excitation,” Proc. of AIAA Aeroacoustics Conference, Palo Alto, CA, July, 1976.