FOLNER, E. Generalization of a theorem of Bogolioùboff to topological groups. With an appendix on Banach mean values in nonabelian groups. MATHEMATICA SCANDINAVICA, [S. l.], v. 2, p. 5–18, 1954. DOI: 10.7146/math.scand.a-10389. Disponível em: https://www.mscand.dk/article/view/10389. Acesso em: 24 nov. 2024.