1. Baseline Security Requirements for Network Security Zones in the Government of Canada (June 2007),
http://www.cse-cst.gc.ca/its-sti/publications/itsg-csti/itsg22-eng.html#a42
2. Defend your network from slow scanning (March 2013),
http://www.techrepublic.com/blog/security/defend-your-network-from-slow-scanning/361
3. Slowloris http dos (March 2013),
http://ha.ckers.org/slowloris/
4. John, A., Sivakumar, T.: DDoS: Survey of Traceback Methods. International Journal of Recent Trends in Engineering 1(2) (May 2009)
5. Snoeren, A.C., Partridge, C., Sanchez, L.A., Jones, C.E., Tchakountio, F., Schwartz, B., Kent, S.T., Strayer, W.T.: Single-packet ip traceback. IEEE/ACM Trans. Netw. (2002)