@Article{vigna09:sqlweb,
  author = 	 {Giovanni Vigna and Fredrik Valeur and Davide Balzarotti and William Robertson and Christopher Kruegel and Engin Kirda},
  title = 	 {{Reducing Errors in the Anomaly-based Detection of Web-Based Attacks through the Combined Analysis of Web Requests and SQL Queries}},
  journal = 	 {Journal of Computer Security},
  year = 	 2009,
  volume = 	 17,
  month =        {March},
  number = 	 3}