Yacine Rebahi Muhammad Sher Thomas Magedanz Detecting flooding attacks against IP Multimedia Subsystem (IMS) networks. 848-851 2008 AICCSA http://dx.doi.org/10.1109/AICCSA.2008.4493627 conf/aiccsa/2008 db/conf/aiccsa/aiccsa2008.html#RebahiSM08