Ule, Helen, Colin Novak, Ramani Ramakrishnan, and Robert Gaspar. “Comparison of Experimental and Modeled Insertion Loss of a Complex Multi-Chamber Muffler”. Canadian Acoustics 30, no. 3 (September 1, 2002): 74-75. Accessed July 10, 2020. https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1461.