On a Class of Neumann Boundary Value Equations Driven by a (p1, , Pn)-Laplacian Operator. Journal of Partial Differential Equations, [S. l.], v. 25, n. 1, p. 21–31, 2012. DOI: 10.4208/jpde.v25.n1.2. Disponível em: https://www.global-sci.com/index.php/jpde/article/view/4203. Acesso em: 5 dec. 2025.