On Mixed Type Duality for Nondifferentiable Multiobjective Variational Problems. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 3, n. 1, p. 81–97, 2009. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/457. Acesso em: 8 feb. 2025.