Fractional Ostrowski type inequalities for functions whose derivatives are s-preinvex. Extracta Mathematicae, [S. l.], v. 34, n. 2, p. 285–301, 2019. Disponível em: https://revista-em.unex.es/index.php/EM/article/view/2605-5686.34.2.285.. Acesso em: 2 jan. 2025.