1. Doppler frequency shift for aircraft noise in a refractive atmosphere;Roy;AIAA/NASA Paper No. 84-2354,1984
2. A restoration procedure for (non-stationary) signals from moving sources;Verhas;Journal of Sound and Vibration,1983
3. Flight test of a pure-tone acoustic source;Mueller;NASA TP 1898,1981
4. Flight effects on fan noise with static and wind-tunnel comparisons;Preisser;Journal of Aircraft,1984
5. Program for narrow-band analysis of aircraft flyover noise using ensemble averaging techniques;Gridley;NASA CR 165867,1982