Ha, Linh. “Generalized Knaster-Kuratowski-Mazurkiewicz Type Theorems and Applications to Minimax Inequalities”. VNUHCM Journal of Science and Technology Development 20, no. K2 (June 30, 2017): 131-140. Accessed April 27, 2025. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/459.