HAG, K.; VAMANAMURTHY, M. K. The coefficients of quasiconformality of cones in n-space. Annales Fennici Mathematici, [S. l.], v. 3, n. 2, p. 267–275, 1976. DOI: 10.5186/aasfm.1977.0308. Disponível em: https://afm.journal.fi/article/view/134323. Acesso em: 25 nov. 2024.