AFROUZI, G. A.; NAGHIZADEH, Z.; CHUNG, N. T. On a Class of Nonuniformly Nonlinear Systems with Dirichlet Boundary Conditions. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 66, n. 9, p. 1155–1165, 2014. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2206. Acesso em: 5 dec. 2025.