ENFLO, Per. Topological Groups in Which Multiplication on One Side is Differentiable or Linear. MATHEMATICA SCANDINAVICA, [S. l.], v. 24, p. 195–207, 1969. DOI: 10.7146/math.scand.a-10930. Disponível em: https://tidsskrift.dk/math/article/view/10930. Acesso em: 14 aug. 2026.