1. Sources of noise in axial flow fans;Mugridge;Journal of the Acoustical Society of America,1971
2. Noise due to interaction of inlet turbulence with isolated stators and rotors;Mani;Journal of Sound and Vibration,1971
3. Unified analysis of fan stator noise;Hanson;Journal of the Acoustical Society of America,1973
4. Sevik, Sound radiation from a subsonic rotor subjected to turbulence, In its Fluid Mechanics, Acoustics, and Design of Turbomachinery, Part II, NASA Sp-304, Pennsylvania State University, University Park, 1974, pp. 493–512.
5. Broadband and discrete frequency radiation from subsonic rotors;Homicz;Journal of Sound and Vibration,1974