A. SNAKOWSKA and H. IDCZAK, “Theoretical and experimental analysis of the band noise radiated from a hard-walled cylindrical duct”, Arch. Acoust., vol. 22, no. 4, pp. 397–410, Jan. 2014, Accessed: May 22, 2025. [Online]. Available: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/964