DRAGOMIR, S. S.; FEDOTOV, I. AN INEQUALITY OF GRUSS’ TYPE FOR RIEMANN-STIELTJES INTEGRAL AND APPLICATIONS FOR SPECIAL MEANS. Tamkang Journal of Mathematics, [S. l.], v. 29, n. 4, p. 287–292, 1998. DOI: 10.5556/j.tkjm.29.1998.4257. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4257. Acesso em: 18 jul. 2024.