BASHMAL, S.; BHAT, R.; RAKHEJA, S. In-plane free vibration of circular disks using characteristic orthogonal polynomials in Rayleigh-Ritz method. Canadian Acoustics, [S. l.], v. 35, n. 3, p. 164–165, 2007. Disponível em: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1952. Acesso em: 16 oct. 2021.