@inproceedings{KR-2000-LafageL,
	author        = "Celine Lafage and Jérôme Lang",
	booktitle     = "{Proceedings of the Seventh International Conference on Principles of Knowledge Representation and Reasoning}",
	pages         = "457--468",
	publisher     = "{Morgan Kaufmann}",
	title         = "{Logical representation of preferences for group decision making}",
	year          = 2000,
}