Absolute Nevanlinna Summability of Conjugate Derived Fourier Series. Journal of International Academy of Physical Sciences, [S. l.], v. 12, n. 1-4, p. 75–82, 2008. Disponível em: http://www.iaps.org.in/journal/index.php/journaliaps/article/view/842. Acesso em: 23 oct. 2026.