1. Obama Administration Partners With Industry To Fight Botnets http://www.darkreading.com/vulnerabilities---threats/obama-administration-partners-with-industry-to-fight-botnets/d/d-id/1137786
2. Application-Layer DDoS Attacks Are Growing: Three to Watch Out For https://support.ixiacom.com/about-us/news-events/corporate-blog/application-layer-ddos-attacks-are-growing-three-watch-out October 2011
3. The Arbor Networks Annual Worldwide Infrastructure Security Report https://www.arbornetworks.com/images/documents/WISR2016_EN_Web.pdf
4. Czyz J Kallitsis M Gharaibeh M Papadopoulos C Bailey M Karir M Taming the 800 pound gorilla: The rise and decline of NTP DDoS attacks November 2014 Vancouver, BC, Canada
5. Martini P Botnets detection, classification and countermeasures 2011 Bonn, Germany