1. The effects of duration and background noise level on perceived noisiness;Pearsons;Federal Aviation Administration Technical Report ADS-78,1966
2. The effects of background noise upon perceived noisiness;Nagel;Federal Aviation Administration Technical Report DS-67-22,1967
3. Noise complaint potential, ambient noise versus intrusive noise;Wells,1971
4. A new basis for aircraft noise rating;Robinson;NPL Aero Report Ac49,1971