HONDA, N. On the structure of Pedersen-Poon twistor spaces. MATHEMATICA SCANDINAVICA, [S. l.], v. 91, n. 2, p. 175–213, 2002. DOI: 10.7146/math.scand.a-14385. Disponível em: https://www.mscand.dk/article/view/14385. Acesso em: 14 apr. 2025.