AYELE, T. G.; GOLDMAN, M. L. Spaces of Generalised Smoothness in Summability Problems for Φ− Means of Spectral Decomposition. Eurasian Mathematical Journal, [S. l.], v. 5, n. 1, p. 61–81, 2014. Disponível em: https://emj.enu.kz/index.php/main/article/view/562. Acesso em: 26 aug. 2025.