PIECHOWICZ, Janusz. Determination of the sound power of a machine inside an industrial room by the inversion method. Archives of Acoustics, [S. l.], v. 34, n. 2, p. 169–176, 2009. Disponível em: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/573. Acesso em: 25 apr. 2025.