GHASVAREH, M.; OMIDVAR, M. E. On some numerical radius inequalities for Hilbert space operators. Methods of Functional Analysis and Topology, [S. l.], v. 27, n. 2, p. 192–197, 2021. DOI: https://doi.org/10.31392/MFAT-npu26_2.2021.07. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/794. Acesso em: 16 dec. 2025.