8Alberti P W. Noise-the most ubiquitous pollutant[J]. Noise Health,1998,1:3-5.
9T J Schultz. Community Noise Rating[M].London and New York: Applied Science Publishers,1982.52-54.
10Gjestland T, G Oftedal. Assessment of noise annoyance: the introduction of a threshod level in Leq calculations[J].J.Sound Vibr.,1980,69(1): 603-610.