Christian Prehofer Wolfgang Kellerer Robert Hirschfeld Hendrik Berndt Katsuya Kawamura An Architecture Supporting Adaptation and Evolution in Fourth Generation Mobile Communication Systems. 336-343 2002 4 Journal of Communications and Networks 4 http://jcn.or.kr/home/journal/include/downloadPdf.asp?articleuid={94E94BCB-4DBC-4980-BC29-CF4166FA326A} db/journals/jcn/jcn4.html#PrehoferKHBK02