@inproceedings{ECDL-2007-Nguer,
	author        = "Elhadji Mamadou Nguer",
	booktitle     = "{Proceedings of the 11th European Conference on Research and Advanced Technology for Digital Libraries}",
	doi           = "10.1007/978-3-540-74851-9_73",
	isbn          = "978-3-540-74850-2",
	pages         = "573--578",
	publisher     = "{Springer}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Semantics and Pragmatics of Preference Queries in Digital Libraries}",
	volume        = 4675,
	year          = 2007,
}