STROMQUIST, Walter. The maximum distance between two-dimensional Banach spaces. Mathematica Scandinavica, Berkeley, CA, United States, v. 48, p. 205–225, 1981. DOI: 10.7146/math.scand.a-11912. Disponível em: https://journals.msp.org/mscand/article/view/1716. Acesso em: 25 jul. 2026.