CHANG, Yao-Chang; DEMKOWICZ, Leszek. Vibrations of a spherical shell. Comparison of 3-D elasticity and Kirchhoff shell theory results. Computer Assisted Methods in Engineering and Science, [S. l.], v. 2, n. 3, p. 187–206, 2023. Disponível em: https://cames3.ippt.pan.pl/index.php/cames/article/view/1472. Acesso em: 13 mar. 2025.