@article{hearst2006,
	title = {Clustering versus faceted categories for information exploration},
	address = {New York, NY, USA},
	author = {Marti A. Hearst},
	journal = {Communications ACM},
	number = {4},
	pages = {59--61},
	publisher = {ACM},
	url = {http://portal.acm.org/citation.cfm?id=1121983},
	volume = {49},
	year = {2006},
	biburl = {http://www.bibsonomy.org/bibtex/2459e6e2689e56eec5f317658c738675e/ewomant},
	description = {Clustering versus faceted categories for information exploration},
	issn = {0001-0782}, doi = {http://doi.acm.org/10.1145/1121949.1121983},
	keywords = {classification cluster facetted_search information_retrieval to_download vertical_search }
}