SELBERG, H. L. Über einen Satz von Rellich. MATHEMATICA SCANDINAVICA, [S. l.], v. 46, p. 54–60, 1980. DOI: 10.7146/math.scand.a-11850. Disponível em: https://www.mscand.dk/article/view/11850. Acesso em: 4 may. 2024.