ARSOVE, Maynard G. The Pincherle basis problem and a theorem of Boas. Mathematica Scandinavica, Berkeley, CA, United States, v. 5, p. 271–275, 1957. DOI: 10.7146/math.scand.a-10505. Disponível em: https://journals.msp.org/mscand/article/view/2815. Acesso em: 25 jul. 2026.