FACTA UNIVERSITATIS SERIES: ELECTRONICS AND ENERGETICS
Editor-in-Chief: V.S.STOJANOVIC, email: vitko@elfak.ni.ac.yu University of Niš, Serbia and Montenegro Corresponding address: Faculty of Electronic Engineering, Department of Electronics, Beogradska 14, P.O. Box 73, 18000 Niš, Serbia and Montenegro Phone: +381-18-588-399 Fax: +381-18-588-442 Editorial Board: G.DIMIROVSKI, Istanbul, Turkey V.SHMERKO, Szczecin, Poland B.HARRISON, Brisbane, Australia N.STOJADINOVIC, Niš, Sebia J.M.KONTOLEON, Thessaloniki, Greece I.STOJANOVIC, Belgrade, Serbia B.LANKL, Neubiberg, Germany M.STOJIC, Belgrade, Serbia M.LUTOVAC, Belgrade, Serbia Z.TANG, Miyazaki-shi, Japan B.MILOVANOVIC, Niš, Serbia J.TSOUKALAS, Thessaloniki, Greece V.MILOSEVIC, Novi Sad, Serbia H.WONG, Hong Kong T.MURESAN, Timisoara, Romania W.WEBER Bochum, Germany J.NAHMAN, Belgrade, Serbia I.YATCHEV, Sofia, Bulgaria G.SCARBATA, Ilmenau, Germany Secretary: S.V.NIKOLIC, University of Nis.
This publication was in part supported by the Serbian Scientific Fondation
Tehnical support: Z.A.Ilic, University of Niš, Serbia and Montenegro
Published by University of Niš, Univerzitetski trg 2, P.O. Box 123,18000 Niš, Serbia and Montenegro
© 2003 by University of Niš, Serbia and Montenegro. Enquiries concerning sale and distribution are to be addressed to the Publisher. Printed by -Xcopy- 18000 Nis, Serbia and Montenegro