@inproceedings{PPDP-2006-ColazzoS,
	author        = "Dario Colazzo and Carlo Sartiani",
	booktitle     = "{Proceedings of the Eighth International Conference on Principles and Practice of Declarative Programming}",
	doi           = "10.1145/1140335.1140343",
	isbn          = "1-59593-388-3",
	pages         = "51--60",
	publisher     = "{ACM}",
	title         = "{An efficient algorithm for XML type projection}",
	year          = 2006,
}