1. G. Anastassiou, Basic Convergence with rates of smooth Picard singular integral operators, J. Comput. Anal. Appl, 8(2006), 313-334.
2. G. Anastassiou, General Uniform Approximation Theory by Multivariate Singular Integral Operators, submitted, 2011.
3. G. Anastassiou and S.S. Dragomir, On some estimates of the remainder in Taylor’s formula, J. of Math. Anal. and Appl., Vol 263, issue 1, pp. 246-263, (2001).
4. G. Anastassiou and O. Duman, Statistical Approximation by double Picard singular integral operators, Studia Univ. Babes-Bolyai Math., 55(2010), 3-20.
5. G. Anastassiou and O. Duman, Uniform Approximation in statistical sense by double Gauss-Weierstrass singular integral operators, Nonlinear Funct. Anal. Appl. (accepted for publication, 2009).