ŁAPKA, Wojciech. Acoustic attenuation performance of a round silencer with the spiral duct at the inlet. Archives of Acoustics, [S. l.], v. 32, n. 4(S), p. 247–252, 2014. Disponível em: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/1416. Acesso em: 28 apr. 2025.