UYSAL, G.; M. YILMAZ, M.; IBIKLI, E. On pointwise convergence of bivariate nonlinear singular integral operators. Kuwait Journal of Science, [S. l.], v. 44, n. 2, 2017. Disponível em: https://journalskuwait.org/kjs/index.php/KJS/article/view/1530. Acesso em: 29 apr. 2026.