TERKELSEN, F. Some Minimax Theorems. MATHEMATICA SCANDINAVICA, [S. l.], v. 31, p. 405–413, 1972. DOI: 10.7146/math.scand.a-11441. Disponível em: https://www.mscand.dk/article/view/11441. Acesso em: 24 nov. 2024.