CHEN, C.-M. G-KKM Theorem on Non-Convex Sets and its Applications. The Journal of the Indian Mathematical Society, [S. l.], v. 72, n. 1-4, p. 43–51, 2005. Disponível em: https://informaticsjournals.com/index.php/jims/article/view/21814. Acesso em: 3 may. 2024.