SARIKAYA, M. Z.; BILIŞIK, C. C. Opial-Jensen and functional inequalities for convex functions. Journal of Fractional Calculus and Nonlinear Systems, [S. l.], v. 3, n. 2, p. 27–36, 2022. DOI: 10.48185/jfcns.v3i2.553. Disponível em: https://www.sabapub.com/index.php/jfcns/article/view/553. Acesso em: 29 apr. 2025.