TOMTER, P. A New Proof for Folner’s Condition for Maximally Almost Periodic Groups. MATHEMATICA SCANDINAVICA, [S. l.], v. 18, p. 25–34, 1966. DOI: 10.7146/math.scand.a-10777. Disponível em: https://www.mscand.dk/article/view/10777. Acesso em: 2 may. 2024.