GIOUVANAKIS, Marios; SEVASTIADIS, Christos; PAPANIKOLAOU, George. Low-Frequency Noise Attenuation in a Closed Space Using Adaptive Directivity Control Sources of a Quadrupole Type. Archives of Acoustics, [S. l.], v. 44, n. 1, p. 71–78, 2019. DOI: 10.24425/aoa.2019.126353. Disponível em: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/2265. Acesso em: 26 apr. 2025.