@article{BuildingKnowledgeBase,
  title = "Building a Knowledge Base for Implementing a Web-based Computerized Recommendation System",
  author = "J.D. Velasquez and V. Palade",
  year = "2007",
  journal = "International Journal of Artificial Intelligence Tools",
  number = "5",
  pages = "793--828",
  volume = "16",
}