MARTSINKEVITŠ, Julia; PÕLDVERE, Märt. Uniqueness of norm-preserving extensions of functionals on the space of compact operators. MATHEMATICA SCANDINAVICA, [S. l.], v. 125, n. 1, p. 67–83, 2019. DOI: 10.7146/math.scand.a-112071. Disponível em: https://tidsskrift.dk/math/article/view/112071. Acesso em: 14 aug. 2026.