@inproceedings{ECIR-2009-BoscCPU,
	author        = "Patrick Bosc and Vincent Claveau and Olivier Pivert and Laurent Ughetto",
	booktitle     = "{Proceedings of the 31st European Conference on Information Retrieval Research: Advances in Information Retrieval}",
	doi           = "10.1007/978-3-642-00958-7_24",
	isbn          = "978-3-642-00957-0",
	pages         = "252--263",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Graded-Inclusion-Based Information Retrieval Systems}",
	volume        = 5478,
	year          = 2009,
}