NAJAFI, Hamed. Some operator inequalities for Hermitian Banach $*$-algebras. Mathematica Scandinavica, Berkeley, CA, United States, v. 126, n. 1, p. 82–98, 2020. DOI: 10.7146/math.scand.a-115624. Disponível em: https://journals.msp.org/mscand/article/view/209. Acesso em: 24 jul. 2026.