MARTSINKEVITŠ, Julia; PÕLDVERE, Märt. Uniqueness of norm-preserving extensions of functionals on the space of compact operators. Mathematica Scandinavica, Berkeley, CA, United States, v. 125, n. 1, p. 67–83, 2019. DOI: 10.7146/math.scand.a-112071. Disponível em: https://journals.msp.org/mscand/article/view/230. Acesso em: 24 jul. 2026.