BREMNER, A. On Euler’s quartic surface. MATHEMATICA SCANDINAVICA, [S. l.], v. 61, p. 165–180, 1987. DOI: 10.7146/math.scand.a-12197. Disponível em: https://tidsskrift.dk/math/article/view/12197. Acesso em: 14 aug. 2026.