PACHPATTE, S. B.; PACHPATTE, B. G. On some useful integral inequalities and their discrete analogues. Tamkang Journal of Mathematics, [S. l.], v. 33, n. 2, p. 139–148, 2002. DOI: 10.5556/j.tkjm.33.2002.293. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/293. Acesso em: 24 nov. 2024.