Second-Kind Boundary Integral Equations for Scattering at Composite Partly Impenetrable Objects. Communications in Computational Physics, [S. l.], v. 23, n. 1, p. 264–295, 2018. DOI: 10.4208/cicp.OA-2016-0171. Disponível em: https://global-sci.com/index.php/cicp/article/view/6520. Acesso em: 6 dec. 2025.