@inproceedings{JCDL-2006-FengM,
	author        = "Shaolei Feng and R. Manmatha",
	booktitle     = "{Proceedings of the Sixth Joint Conference on Digital Libraries}",
	doi           = "10.1145/1141753.1141776",
	isbn          = "1-59593-354-9",
	pages         = "109--118",
	publisher     = "{ACM}",
	title         = "{A hierarchical, HMM-based automatic evaluation of OCR accuracy for a digital library of books}",
	year          = 2006,
}