@inproceedings{SIGIR-1997-HearstK,
	author        = "Marti A. Hearst and Chandu Karadi",
	booktitle     = "{Proceedings of the 20th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	cdrom         = "SIGIR1997/P246.pdf",
	doi           = "10.1145/258525.258582",
	pages         = "246--255",
	publisher     = "{ACM}",
	title         = "{Cat-a-Cone: An Interactive Interface for Specifying Searches and Viewing Retrieval Results using a Large Category Hierarchy}",
	year          = 1997,
}