@inproceedings{SAC-1997-WeiqiY,
	author        = "Xiao Weiqi and Yucai Feng",
	booktitle     = "{Proceedings of the 12th Symposium on Applied Computing}",
	doi           = "10.1145/331697.331729",
	pages         = "152--154",
	publisher     = "{ACM}",
	title         = "{Spatial index based on multiple interval segments}",
	year          = 1997,
}