@inproceedings{ICEIS-2002-TanL,
	author        = "Rebecca Boon-Noi Tan and Guojun Lu",
	booktitle     = "{Proceedings of the Fourth International Conference on Enterprise Information Systems}",
	pages         = "187--194",
	title         = "{A Hierarchical Approach to Complex Data Cube Queries}",
	year          = 2002,
}