Department of Information & Communications Engineering,
  PaiChai University,
  439-6,Doma-dong,Seo-Gu,
  Daejeon,302-735 South Korea
  TEL.+82-42-536-9574 (KOREA)
       +44-20-30518266 (UK)
       +1(253)-242-2448 (U.S.A.)
  FAX.+82-42-520-5752
  Email. singh@pcu.ac.kr
  Homepage.http://w2.pcu.ac.kr/~singh/