CHEN, C.-P.; QI, F. New proofs of monotonicities of generalized weighted mean values. Tamkang Journal of Mathematics, [S. l.], v. 35, n. 4, p. 301–304, 2004. DOI: 10.5556/j.tkjm.35.2004.188. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/188. Acesso em: 19 apr. 2024.