RUBEL, L. A.; STRAUS, E. G. Special Trigonometric Series and the Riemann Hypothesis. MATHEMATICA SCANDINAVICA, [S. l.], v. 18, p. 35–44, 1966. DOI: 10.7146/math.scand.a-10778. Disponível em: https://www.mscand.dk/article/view/10778. Acesso em: 6 may. 2024.