KESTEN, Harry. Full Banach Mean Values on Countable groups. Mathematica Scandinavica, Berkeley, CA, United States, v. 7, p. 146–156, 1959. DOI: 10.7146/math.scand.a-10568. Disponível em: https://journals.msp.org/mscand/article/view/2778. Acesso em: 8 sep. 2026.