@InProceedings{Personal_Security_Agent_KQML_based_PKI,
  author = "Qi  He and Katia  Sycara",
  title = "{Personal Security Agent: KQML-based PKI}",
  month = "May",
  year = "1998",
  pages = "377-384",
  booktitle = "Proceedings of the 2nd International Conference on Autonomous Agents",
  publisher = "ACM Press",
}