MANNA, A. Factorized enhancement of Copson’s inequality. Tamkang Journal of Mathematics, [S. l.], v. 49, n. 3, p. 195–203, 2018. DOI: 10.5556/j.tkjm.49.2018.2358. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/2358. Acesso em: 4 may. 2024.