CHEN, C.-P.; QI, F. Generalization of an inequality of Alzer for negative powers. Tamkang Journal of Mathematics, [S. l.], v. 36, n. 3, p. 219–222, 2005. DOI: 10.5556/j.tkjm.36.2005.113. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/113. Acesso em: 18 jul. 2024.