An Unpreconditioned Boundary-Integral for Iterative Solution of Scattering Problems with Non-Constant Leontovitch Impedance Boundary Conditions. Communications in Computational Physics, [S. l.], v. 15, n. 5, p. 1431–1460, 2014. DOI: 10.4208/cicp.250313.281013a. Disponível em: https://global-sci.com/index.php/cicp/article/view/7521. Acesso em: 6 dec. 2025.