@inproceedings{DocEng-2009-BarcenasGL,
	author        = "Everardo Bárcenas and Pierre Genevès and Nabil Layaïda",
	booktitle     = "{Proceedings of the Ninth Symposium on Document Engineering}",
	doi           = "10.1145/1600193.1600199",
	isbn          = "978-1-60558-575-8",
	pages         = "21--24",
	publisher     = "{ACM}",
	title         = "{On the analysis of queries with counting constraints}",
	year          = 2009,
}