1. W. G. Orr, “Handbook for Industrial Noise Control”, Chap.5, p.43, National Aeronautics and Space Administration, United States, 1981.
2. K. Attenborough, Phys. Rep., 82, 179 (1982).
3. B. J. Smith, R. J. Peters, and Owens, “Acoustics and Noise Control”, 2nd ed., pp.44–46, Addison Wesely Longman Ltd., England, 1996.
4. J. Allard and Y. Champoux, J. Acoust. Soc. Am., 91, 3346 (1992).
5. Z. Hong, L. Bo, H. Guangsu, and H. A. Jia, J. Sound Vib. 304, 400 (2007).