ALFSEN, Erik M. Boundary Values for Homomorphisms of Compact Convex Sets. MATHEMATICA SCANDINAVICA, [S. l.], v. 19, p. 113–121, 1966. DOI: 10.7146/math.scand.a-10799. Disponível em: https://tidsskrift.dk/math/article/view/10799. Acesso em: 13 aug. 2026.