CHEN, Y. Hadamard’s inequality on a triangle and on a polygon. Tamkang Journal of Mathematics, [S. l.], v. 35, n. 3, p. 247–254, 2004. DOI: 10.5556/j.tkjm.35.2004.205. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/205. Acesso em: 24 apr. 2024.