George C. Oikonomou Jelena Mirkovic Peter L. Reiher Max Robinson A Framework for a Collaborative DDoS Defense. 33-42 2006 conf/acsac/2006 ACSAC http://doi.ieeecomputersociety.org/10.1109/ACSAC.2006.5 db/conf/acsac/acsac2006.html#OikonomouMRR06