1. Separated flow noise of a flat plate at large attack angles
2. Sources of noise in axial flow fans
3. Acoustic radiation from aerofoils with turbulent boundary layers
4. (4) Curle, N., The Influence of the Solid Boundary upon Aerodynamic Sound, Proceeding of Royal Society of London, A231 (1955), pp. 505-514.
5. (5) Lighthill, M. J., On Sound Generation Aerodynamically (I. General Theory), Proceeding of Royal Society of London, A211 (1951), pp. 564-587.