Associate editor
of the following international scientific journals

Journal Publisher
Numerical Linear Algebra with Applications (Editor at Large) John Wiley & Sons, Ltd,
Chichester, UK
Journal of Computational and Applied Mathematics (since 1975) Elsevier Science,
North Holland,
Amsterdam
Communications in Numerical Methods in Engineering (since 1984) John Wiley & Sons, Ltd,
Chichester, UK
International Journal of High Speed Computing (since 1989) World Scientific Publ.
Singapore
East-West Journal of Numerical Mathematics VSP
Utrecht, Tokyo
Siberian Journal of Computer Mathematics Nova Science Publ. Inc.
New York
Computer Mathematics and its Applications Hellenic Math. Society,
Athens, Greece
International Journal of Computational and Numerical Analysis and Applications Academic Publications
ISSN 1311-6789