WILCOX, Theodore W. On the Structure of Maximally Almost Periodic Groups. Mathematica Scandinavica, Berkeley, CA, United States, v. 23, p. 221–232, 1968. DOI: 10.7146/math.scand.a-10914. Disponível em: https://journals.msp.org/mscand/article/view/2439. Acesso em: 25 jul. 2026.