DRAGOMIR, S. S. Some Inequalities of Čebyšev Type for Functions of Operators in Hilbert Spaces. Sarajevo Journal of Mathematics, [S. l.], v. 10, n. 2, p. 221–235, 2024. DOI: 10.5644/SJM.10.2.08. Disponível em: https://sjm.anubih.ba/index.php/sjm/article/view/224. Acesso em: 16 oct. 2024.