1. The development of contemporary views of flow-tone generation;Blake,1986
2. Some aspects of aeroacoustics: from Rayleigh until today;Powell;Journal of Vibration and Acoustics,1990
3. The dissipation of sound at an edge;Howe;Journal of Sound and Vibration,1980
4. J.E. Rossiter, Wind tunnel experiments on the flow-over rectangular cavities at subsonic and transonic speeds, Technical Report 64037, Royal Aircraft Establishment, 1964.