Thawani, P.T., and A.G. Doige. “Effect of Mean Flow and Damping on the Performance of Reactive Mufflers”. Canadian Acoustics 11, no. 1 (January 1, 1983): 29–47. Accessed February 20, 2025. https://jcaa.caa-aca.ca/index.php/jcaa/article/view/497.