@inproceedings{ADL-1998-YoonK,
	author        = "Jongpil Yoon and Sung-Hyuk Kim",
	booktitle     = "{Proceedings of the IEEE Forum on Reasearch and Technology Advances in Digital Libraries, IEEE ADL '98, Santa Barbara, California, USA, April 22-24, 1998}",
	doi           = "10.1109/ADL.1998.670421",
	isbn          = "0-8186-8464-X",
	pages         = "206--215",
	publisher     = "{IEEE Computer Society}",
	title         = "{A Three-Level User Interface to Multimedia Digital Libraries with Relaxation and Restriction}",
	year          = 1998,
}