@inproceedings{PPDP-2004-GrecoGSS,
	author        = "Gianluigi Greco and Antonella Guzzo and Domenico Saccà and Francesco Scarcello",
	booktitle     = "{Proceedings of the Sixth International Conference on Principles and Practice of Declarative Programming}",
	doi           = "10.1145/1013963.1013989",
	isbn          = "1-58113-819-9",
	pages         = "238--249",
	publisher     = "{ACM}",
	title         = "{Event choice datalog: a logic programming language for reasoning in multiple dimensions}",
	year          = 2004,
}