dos Santos, Lucelina Batista, Marko Antonio Rojas-Medar, and Valeriano Antunes de Oliveira. “Saddle Point and Second Order Optimality in Nondifferentiable Nonlinear Abstract Multiobjective Optimization”. Trends in Computational and Applied Mathematics 13, no. 2 (August 31, 2012): 179–191. Accessed July 3, 2024. https://tema.sbmac.org.br/tema/article/view/87.