NJASTAD, O. Some Properties of Proximity and Generalized Uniformity. MATHEMATICA SCANDINAVICA, [S. l.], v. 12, p. 47–56, 1963. DOI: 10.7146/math.scand.a-10672. Disponível em: https://www.mscand.dk/article/view/10672. Acesso em: 24 nov. 2024.