FLEISCHER, I. A Note on Universal Homogeneous Models. MATHEMATICA SCANDINAVICA, [S. l.], v. 19, p. 183–184, 1966. DOI: 10.7146/math.scand.a-10807. Disponível em: https://www.mscand.dk/article/view/10807. Acesso em: 2 may. 2024.