ALFSEN, E. M.; FENSTAD, J. E. On the Equivalence Between Proximity Structures and Totally Bounded Uniform Structures. MATHEMATICA SCANDINAVICA, [S. l.], v. 7, p. 353–360, 1959. DOI: 10.7146/math.scand.a-10581. Disponível em: https://www.mscand.dk/article/view/10581. Acesso em: 7 may. 2024.