@article{DBLP:journals/vldb/BunemanFS00,
	author={Peter Buneman,
               Maria F. Fernandez,
               Dan Suciu},
	journal={VLDB Journal},
	number=1,
	pages={76-110},
	title={UnQL: A Query Language and Algebra for Semistructured Data Based on Structural Recursion},
	volume=9,
	year=2000,
}