1. AlephOne. Smashing the stack for fun and profit. Phrack Magazine, 49(14), 1996.
2. Debra Anderson, Thane Frivold, Ann Tamaru, and Alfonso Valdes. Next Generation Intrusion Detection Expert System (NIDES). SRI International, 1994.
3. The Apache Software Foundation. http://www.apache.org .
4. M. Bykova, S. Ostermann, and B. Tjaden. Detecting network intrusions via a statistical analysis of network packet characteristics. In Proceedings of the 33rd Southeastern Symposium on System Theory, 2001.
5. Crispin Cowan, Calton Pu, David Maier, Heather Hinton, Peat Bakke, Steve Beattie, Aaron Grier, Perry Wagle, and Qian Zhang. Automatic detection and prevention of buffer-overflow attacks. In 7th USENIX Security Symposium, January 1998.