[1]
L. B. dos Santos, M. A. Rojas-Medar, e V. A. de Oliveira, “Saddle Point and Second Order Optimality in Nondifferentiable Nonlinear Abstract Multiobjective Optimization”, Trends Comput. Appl. Math., vol. 13, nº 2, p. 179–191, ago. 2012.