@Article{kruegel05:multimodel,
  author =  {C. Kruegel and G. Vigna and W. Robertson},
  title =   {{A Multi-model Approach to the Detection of Web-based Attacks}},
  journal = {Computer Networks},
  year =    2005,
  volume =  48,
  number =  5,
  pages =   {717--738},
  month =   {August}
}