@inproceedings{ICPR-v4-2006-FengC,
	author        = "Jianjiang Feng and Anni Cai",
	booktitle     = "{Proceedings of the 18th International Conference on Pattern Recognition, Volume 4}",
	doi           = "10.1109/ICPR.2006.569",
	isbn          = "0-7695-2521-0",
	pages         = "433--436",
	publisher     = "{IEEE Computer Society}",
	title         = "{Fingerprint Indexing Using Ridge Invariants}",
	year          = 2006,
}