LANDSTAD, Magnus B. On the Bohr Topology in Amenable Topological Groups. Mathematica Scandinavica, Berkeley, CA, United States, v. 28, p. 207–214, 1971. DOI: 10.7146/math.scand.a-11017. Disponível em: https://journals.msp.org/mscand/article/view/2276. Acesso em: 25 jul. 2026.