Guigou, C., C. A. Gentry, J. Pan, and C. R. Fuller. “Active Control of Sound With Foam-PVDF Composite Material”. Canadian Acoustics 23, no. 3 (September 1, 1995): 105-106. Accessed May 7, 2021. https://jcaa.caa-aca.ca/index.php/jcaa/article/view/963.