@inproceedings{CIKM-2007-LiFWZ,
	author        = "Guoliang Li and Jianhua Feng and Jianyong Wang and Lizhu Zhou",
	booktitle     = "{Proceedings of the 16th ACM International Conference on Information and Knowledge Management}",
	doi           = "10.1145/1321440.1321447",
	isbn          = "978-1-59593-803-9",
	pages         = "31--40",
	publisher     = "{ACM}",
	title         = "{Effective keyword search for valuable lcas over xml documents}",
	year          = 2007,
}