KAIJSER, S. A note on dual Banach spaces. MATHEMATICA SCANDINAVICA, [S. l.], v. 41, p. 325–330, 1977. DOI: 10.7146/math.scand.a-11725. Disponível em: https://www.mscand.dk/article/view/11725. Acesso em: 2 may. 2024.