Laly, Z., C. Mechefske, S. Ghinet, B. Ashrafi, and C. Kone. “Investigations on a Periodic Acoustic Metamaterial for Multi-Tonal Noise Attenuation”. Canadian Acoustics, vol. 51, no. 3, Oct. 2023, pp. 136-7, https://jcaa.caa-aca.ca/index.php/jcaa/article/view/4046.