Dirichlet problem with $\phi$-Laplacian and mixed singularities. Neliniini Kolyvannya, [S. l.], v. 11, n. 1, p. 81–95, 2008. Disponível em: https://nosc.imath.kiev.ua/index.php/nosc/article/view/464. Acesso em: 12 apr. 2026.