LIMA, V. Approximation properties for dual spaces. MATHEMATICA SCANDINAVICA, [S. l.], v. 93, n. 2, p. 297–312, 2003. DOI: 10.7146/math.scand.a-14425. Disponível em: https://www.mscand.dk/article/view/14425. Acesso em: 23 dec. 2024.