CHEN, F. X. On the generalization of some Hermite – Hadamard inequalities for functions with convex absolute values of the second derivatives via fractional integrals. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 70, n. 12, p. 1696–1706, 2018. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1668. Acesso em: 5 dec. 2025.