BARNETT, N. S.; DRAGOMIR, S. Applications of Ostrowski’s version of the Gr"{u}ss inequality for trapezoid type rules. Tamkang Journal of Mathematics, [S. l.], v. 37, n. 2, p. 163–173, 2006. DOI: 10.5556/j.tkjm.37.2006.161. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/161. Acesso em: 26 apr. 2024.