Fundamental Solution of Dirichlet Boundary Value Problem of Axisymmetric Helmholtz Equation. Communications in Mathematical Research, [S. l.], v. 35, n. 1, p. 21–26, 2020. DOI: 10.13447/j.1674-5647.2019.01.03. Disponível em: https://global-sci.com/index.php/cmr/article/view/8986. Acesso em: 5 dec. 2025.