@inproceedings{luo2003knowledge,
  title = "Knowledge-based acquisition of tradeoff preferences for negotiating agents",
  author = "Luo, Xudong and Jennings, Nicholas R and Shadbolt, Nigel",
  year = "2003",
  booktitle = "Proceedings of the 5th international conference on Electronic commerce",
  organization = "ACM",
  pages = "138--149",
}