Keith, Stephen E., David S. Michaud, and Stephen H.P. Bly. “A Justification for Using a 45 Dba Sound Level Criterion for Wind Turbine Projects”. Canadian Acoustics 36, no. 3 (September 1, 2008): 54–55. Accessed December 8, 2021. https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2034.