@inproceedings{CIKM-2009-LimWW,
	author        = "Lipyeow Lim and Haixun Wang and Min Wang",
	booktitle     = "{Proceedings of the 18th ACM International Conference on Information and Knowledge Management}",
	doi           = "10.1145/1645953.1646157",
	isbn          = "978-1-60558-512-3",
	pages         = "1505--1508",
	publisher     = "{ACM}",
	title         = "{Semantic queries in databases: problems and challenges}",
	year          = 2009,
}