1. Alhambra. “Phfscn.c”. 06/1996. http://ftp2.de.freebsd.org/pub/misc/www.rootshell.com/hacking/phf.c.
2. Bronc Buster. “Cgiscan.c”. 11/1998. http://packetstormsecurity.org/9901-exploits/cgiscan.c.
3. Rain.forest.puppy. “rfp.labs advisories”. www.wiretrip.net/rfp/adv.asp