1. Browser statistics and trends,
http://www.w3schools.com/browsers/browsers_stats.asp
2. Cert advisory ca-1996-01 udp port denial-of-service attack (September 1997),
http://www.cert.org/advisories/CA-1996-01.html
3. Cert advisory ca-1996-21 tcp syn flooding and ip spoofing attacks (November 2000),
http://www.cert.org/advisories/CA-1996-21.html
4. Apiecionek, L., Czerniak, J.: Qos solution for network resource protection. In: Proceedings of International Scientific Conference INFORMATICS 2013, Spiska Nova Ves, Slovakia, November 5-7 (2013)
5. Changwang, Z., Jianping, Y., Zhiping, C., Weifeng, C.: Rred: Robust red algorithm to counter low-rate denial-of-service attacks 14(5) (2010)