BRAŃSKI, A. Acoustic modelling of surface sources. Part II. Piston model, asymmetrical function of vibration velocity, discretizing error, axisymmetrical problem. Archives of Acoustics, [S. l.], v. 20, n. 4, p. 327–345, 2014. Disponível em: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/1274. Acesso em: 13 jan. 2025.