HONDA, Nobuhiro. On the structure of Pedersen-Poon twistor spaces. Mathematica Scandinavica, Berkeley, CA, United States, v. 91, n. 2, p. 175–213, 2002. DOI: 10.7146/math.scand.a-14385. Disponível em: https://journals.msp.org/mscand/article/view/834. Acesso em: 24 jul. 2026.