[1]
T. ZAMORSKI, “Propagation of sound waves of finite amplitude in a horn at frequencies below the cut-off frequency”, Arch. Acoust., vol. 22, no. 4, pp. 411–422, Jan. 2014, Accessed: Apr. 25, 2025. [Online]. Available: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/965