LAU, Ka-sing. The Dual Ball of a Lindenstrauss Space. Mathematica Scandinavica, Berkeley, CA, United States, v. 33, p. 323–337, 1973. DOI: 10.7146/math.scand.a-11494. Disponível em: https://journals.msp.org/mscand/article/view/2168. Acesso em: 25 jul. 2026.