A Simple Low-Degree Optimal Finite Element Scheme for the Elastic Transmission Eigenvalue Problem. Communications in Computational Physics, [S. l.], v. 30, n. 4, p. 1061–1082, 2021. DOI: 10.4208/cicp.OA-2020-0260. Disponível em: https://www.global-sci.com/index.php/cicp/article/view/7003. Acesso em: 5 dec. 2025.