LIU, Z. A refinement of Holder’s integral inequality. Tamkang Journal of Mathematics, [S. l.], v. 34, n. 4, p. 383–386, 2003. DOI: 10.5556/j.tkjm.34.2003.240. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/240. Acesso em: 4 may. 2024.