Chevillotte, Fabien, and Raymond Panneton. “Impedance Tube Characterization of Elastic Properties of Expanding Foams”. Canadian Acoustics 35, no. 3 (September 1, 2007): 158–159. Accessed June 25, 2022. https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1949.