Li, Tianshuo, Lei Zheng, Zhengyang Bi, and Hongchao Ji. “Application of Acoustic Metamaterials in the Design of Muffling Unit of Internal Combustion Engine”. Archives of Acoustics 51, no. 1 (March 31, 2026): 3–23. Accessed April 18, 2026. http://acoustics.ippt.gov.pl/index.php/aa/article/view/4190.