KLOVE, Torleiv. Power Sums of Integers with Missing Digits. Mathematica Scandinavica, Berkeley, CA, United States, v. 28, p. 247–251, 1971. DOI: 10.7146/math.scand.a-11021. Disponível em: https://journals.msp.org/mscand/article/view/2275. Acesso em: 25 jul. 2026.