PATERSON, A. L. T. Amenability and locally compact semigroups. MATHEMATICA SCANDINAVICA, [S. l.], v. 42, p. 271–288, 1978. DOI: 10.7146/math.scand.a-11753. Disponível em: https://www.mscand.dk/article/view/11753. Acesso em: 2 may. 2024.