Construction of Green’s Functions for the Two-dimensional Static Klein-Gordon Equation. Journal of Partial Differential Equations, [S. l.], v. 24, n. 2, p. 114–139, 2011. DOI: 10.4208/jpde.v24.n2.2. Disponível em: https://global-sci.com/index.php/jpde/article/view/4184. Acesso em: 6 dec. 2025.