@inproceedings{JCDL-2006-SongSAO,
	author        = "Min Song and Il-Yeol Song and Robert B. Allen and Zoran Obradovic",
	booktitle     = "{Proceedings of the Sixth Joint Conference on Digital Libraries}",
	doi           = "10.1145/1141753.1141800",
	isbn          = "1-59593-354-9",
	pages         = "202--209",
	publisher     = "{ACM}",
	title         = "{Keyphrase extraction-based query expansion in digital libraries}",
	year          = 2006,
}