GRECO, G.; FLORES-FRANULIC, A.; ROMÁN-FLORES, H. Fenchel equalities and bilinear minmax equalities. MATHEMATICA SCANDINAVICA, [S. l.], v. 98, n. 2, p. 217–228, 2006. DOI: 10.7146/math.scand.a-14992. Disponível em: https://www.mscand.dk/article/view/14992. Acesso em: 5 may. 2024.