Fast Solution for Solving the Modified Helmholtz Equation with the Method of Fundamental Solutions. Communications in Computational Physics, [S. l.], v. 17, n. 3, p. 867–886, 2018. DOI: 10.4208/cicp.181113.241014a. Disponível em: https://global-sci.com/index.php/cicp/article/view/7557. Acesso em: 6 dec. 2025.