EDITORS
Milosav Marjanovi� (University of Belgrade, Serbia)
Zoran Kadelburg (University of Belgrade, Serbia)
Editorial
Advisory Board:
Mark Ivanovitsch Bashmakov (Russian Academy of
Education, Russia)
Lenni Haapasalo, University of Joensuu, Finland
Vladimir Jankovi� (University of Belgrade, Serbia)
Djordje Kadijevi�
(Mathematical Institute, Belgrade, Serbia)
Aleksandar Lipkovski (University
of Belgrade, Serbia)
Vladimir Mi�i� (University of Belgrade, Serbia)
�arko Pavi�evi� (University of Podgorica, Montenegro)
Zoran Rista
Pop-Stojanovi� (University of Florida, Gainesville, Florida, USA)
Nikolai
Khristovich Rozov (Moscow State University, Russia)
Viktor Antonovich
Sadovnichii (Moscow State University, Russia)
Jordan Tabov (Bulgarian
Academy of Sciences, Sofia, Bulgaria)
Bernd Zimmermann (Friedrich Schiller
University of Jena, Germany)