BENEDICKS, Michael. The support of functions and distributions with a spectral gap. Mathematica Scandinavica, Berkeley, CA, United States, v. 55, p. 285–309, 1984. DOI: 10.7146/math.scand.a-12082. Disponível em: https://journals.msp.org/mscand/article/view/1591. Acesso em: 25 jul. 2026.