@inproceedings{SIGIR-1993-Botafogo,
	author        = "Rodrigo A. Botafogo",
	booktitle     = "{Proceedings of the 16th International ACM SIGIR Conference on Research and Development in Information Retrieval (Special Issue of the SIGIR Forum)}",
	cdrom         = "SIGIR1993/P116.pdf",
	doi           = "10.1145/160688.160704",
	isbn          = "0-89791-605-0",
	pages         = "116--125",
	publisher     = "{ACM}",
	title         = "{Cluster Analysis for Hypertext Systems}",
	year          = 1993,
}