Links for ahocorasick
http://ffpf.sourceforge.net/general/overview.php
http://ffpf.sourceforge.net/general/overview.php
0.8 home_page
0.9 home_page
0.8 download_url
0.9 download_url
http://portal.acm.org/citation.cfm?id=360855&dl=ACM&coll=GUIDE
http://portal.acm.org/citation.cfm?id=360855&dl=ACM&coll=GUIDE