QI, Feng; XI, Bo-Yan; ZHANG, Tian-Yu. Hermite–Hadamard-Type Integral Inequalities for Functions Whose First Derivatives are Convex. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 67, n. 4, p. 555–567, 2015. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2002. Acesso em: 14 apr. 2025.