Demetriou IC, Georgiadou SA. A Computational Method for the Karush-Kuhn-Tucker Test of Convexity of Univariate Observations and Certain Economic Applications (Best Student Paper Award of The 2007 International Conference of Computational Statistics and Data Engineering). IAENG International Journal of Applied Mathematics. 2008;Vol. 38(1):44-53.

Papakonstantinou SS, Demetriou IC. Necessary and Sufficient Conditions for Best L1 Estimates of Ordinates of Convex Functions. IAENG International Journal of Applied Mathematics. 2008;Vol. 38(1):30-33.

Vassiliou EE, Demetriou IC. A Distributed Lag Estimator with Piecewise Monotonic Coefficients (Best Paper Award of The 2008 International Conference of Computational Statistics and Data Engineering). In: Proceedings of the World Congress on Engineering 2008, Imperial College, London, U.K., 2-4 July. Vol. Vol. II. ; 2008. pp. 1088-1095.

Demetriou IC. Methods for Least Squares Data Smoothing by Adjustment of Divided Differences. In: Current Themes in Engineering Science 2007, Selected Presentations at the World Congress on Engineering, London, England, 2-4 July 2007. Vol. Vol. 1045. AM Korsunsky, Editor. American Institute of Physics, AIP Conference Proceedings; 2008. pp. 123-132.