Improved Mathematical Relation of The Modal Shapes of Thin Rectangular Plates. Romanian Journal of Acoustics and Vibration, [S. l.], v. 19, n. 2, p. 157–163, 2023. Disponível em: https://rjav.sra.ro/index.php/rjav/article/view/357.. Acesso em: 1 may. 2026.