@inproceedings{SIGIR-2004-LuZT,
	author        = "Yue Lu and Li Zhang and Chew Lim Tan",
	booktitle     = "{Proceedings of the 27th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/1008992.1009108",
	isbn          = "1-58113-881-4",
	pages         = "536--537",
	publisher     = "{ACM}",
	title         = "{A search engine for imaged documents in PDF files}",
	year          = 2004,
}