Solutions of Elliptic Equations ΔU+K(x)e2u=f(x). Journal of Partial Differential Equations, [S. l.], v. 4, n. 2, p. 36–44, 1991. Disponível em: https://global-sci.com/index.php/jpde/article/view/3678. Acesso em: 6 dec. 2025.