@inproceedings{SAC-2009-AmoR,
	author        = "Sandra de Amo and Marcos Roberto Ribeiro",
	booktitle     = "{Proceedings of the 24th Symposium on Applied Computing}",
	doi           = "10.1145/1529282.1529633",
	editor        = "Sung Y. Shin and Sascha Ossowski",
	isbn          = "978-1-60558-166-8",
	pages         = "1573--1577",
	publisher     = "{ACM}",
	title         = "{CPref-SQL: a query language supporting conditional preferences}",
	year          = 2009,
}