@inproceedings{ECIR-2011-PeregoST,
	author        = "Raffaele Perego and Fabrizio Silvestri and Nicola Tonellotto",
	booktitle     = "{Proceedings of the 33rd European Conference on Information Retrieval Research: Advances in Information Retrieval}",
	doi           = "10.1007/978-3-642-20161-5_66",
	isbn          = "978-3-642-20160-8",
	pages         = "665--669",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Representing Document Lengths with Identifiers}",
	volume        = 6611,
	year          = 2011,
}