@inproceedings{CIKM-1999-GeffnerAAS,
	author        = "Steven Geffner and Divyakant Agrawal and Amr El Abbadi and Terence R. Smith",
	booktitle     = "{Proceedings of the Eighth ACM International Conference on Information and Knowledge Management}",
	cdrom         = "CIKM1999/P195.pdf",
	doi           = "10.1145/319950.319978",
	isbn          = "1-58113-146-1",
	pages         = "195--201",
	publisher     = "{ACM}",
	title         = "{Browsing Large Digital Library Collections Using Classification Hierarchies}",
	year          = 1999,
}