@inproceedings{ADL-1999-HoriiIC,
	author        = "Chinatsu Horii and Masakazu Imai and Kunihiro Chihara",
	booktitle     = "{Proceedings of the IEEE Forum on Research and Technology Advances in Digital Libraries, Baltimore, Maryland, USA, May 19-21, 1999}",
	doi           = "10.1109/ADL.1999.777712",
	isbn          = "0-7695-0219-9",
	pages         = "171--178",
	publisher     = "{IEEE Computer Society}",
	title         = "{Conceptual Information Retrieval of Technical Papers for Digital Libraries}",
	year          = 1999,
}