@inproceedings{ECIR-2003-Pons-PorrataLR,
	author        = "Aurora Pons-Porrata and Rafael Berlanga Llavori and José Ruiz-Shulcloper",
	booktitle     = "{Proceedings of the 25th European Conference on Information Retrieval Research: Advances in Information Retrieval}",
	doi           = "10.1007/3-540-36618-0_46",
	isbn          = "3-540-01274-5",
	pages         = "588--596",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Building a Hierarchy of Events and Topics for Newspaper Digital Libraries}",
	volume        = 2633,
	year          = 2003,
}