Dirichlet-to-Neumann Mapping for the Characteristic Elliptic Equations with Symmetric Periodic Coefficients. Communications in Computational Physics, [S. l.], v. 16, n. 4, p. 1102–1115, 2014. DOI: 10.4208/cicp.111213.110414a. Disponível em: https://www.global-sci.com/index.php/cicp/article/view/6242. Acesso em: 5 dec. 2025.