MÜLLER, U. Influence of ribs on the acoustic behaviour of piano resonant plates. Archives of Acoustics, [S. l.], v. 5, n. 2, p. 147–156, 2016. Disponível em: https://acoustics3.ippt.pan.pl/index.php/aa/article/view/3334. Acesso em: 25 apr. 2025.