Yevgeni Koucheryavy Andrey Krendzel Sergey Lopatin Jarmo Harju Performance estimation of UMTS release 5 IM-subsystem elements. 35-39 2002 conf/mwcn/2002 MWCN http://dx.doi.org/10.1109/MWCN.2002.1045692 db/conf/mwcn/mwcn2002.html#KoucheryavyKLH02