ANASTASSIOU, G. A. Approximation by Shift Invariant Univariate Sublinear-Shilkret Operators. CUBO, A Mathematical Journal, [S. l.], v. 20, n. 1, p. 01–16, 2018. DOI: 10.4067/S0719-06462018000100001. Disponível em: https://cubo.ufro.cl/ojs/index.php/cubo/article/view/1895. Acesso em: 29 apr. 2024.