A. Karygiannis E. Antonakakis A. Apostolopoulos Detecting Critical Nodes for MANET Intrusion Detection Systems. 7-15 2006 conf/secperu/2006 SecPerU http://doi.ieeecomputersociety.org/10.1109/SECPERU.2006.8 db/conf/secperu/secperu2006.html#KarygiannisAA06