NAGEL, Rainer J. Ideals in Ordered Locally Convex Spaces. MATHEMATICA SCANDINAVICA, [S. l.], v. 29, p. 259–271, 1971. DOI: 10.7146/math.scand.a-11052. Disponível em: https://tidsskrift.dk/math/article/view/11052. Acesso em: 14 aug. 2026.