International Conference on Computational Methods and Function Theory, Ankara, Bilkent University, 2009,http://www.bilkent.edu.tr/~cmft/

13th International Conference in APPROXIMATION THEORY, San Antonio, Texas, March 7-10, 2010 http://www.math.vanderbilt.edu/~at13

AMEE (www.tu-sofia.amee), 2007 – 2010

African University of Sciences and Technologies,Abuja http://www.aust.edu.ng