Waudby-Smith, Peter, and Ramani Ramakrishnan. “Wind Tunnel Resonances and Helmholtz Resonators”. Canadian Acoustics 35, no. 1 (March 1, 2007): 3–11. Accessed July 17, 2024. https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1867.