BORDULYAK, M. T.; SHEREMETA, M. M. Boundedness of the l-Index of Laguerre–Pólya Entire Functions. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 55, n. 1, p. 91–99, 2003. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3890. Acesso em: 6 dec. 2025.