@inproceedings{SIGIR-2000-MariaS,
	author        = "Nuno Maria and Mário J. Silva",
	booktitle     = "{Proceedings of the 23rd International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/345508.345648",
	isbn          = "1-58113-226-3",
	pages         = "354--356",
	publisher     = "{ACM}",
	title         = "{Theme-based retrieval of Web news}",
	year          = 2000,
}