KOPANIA, Joanna Maria; WÓJCIAK, Kamil; GAJ, Patryk; BOGUSŁAWSKI, Grzegorz. The Influence of the Surface of Ventilation Duct on Sound Attenuation in the Airflow. Archives of Acoustics, [S. l.], v. 51, n. 2, p. 317–331, 2026. DOI: 10.24423/archacoust.2026.4328. Disponível em: https://acoustics.ippt.gov.pl/index.php/aa/article/view/4328. Acesso em: 7 jul. 2026.