@inproceedings{PODS-2005-ArenasL,
	author        = "Marcelo Arenas and Leonid Libkin",
	booktitle     = "{Proceedings of the 24th Symposium on Principles of Database Systems}",
	doi           = "10.1145/1065167.1065171",
	isbn          = "1-59593-062-0",
	pages         = "13--24",
	publisher     = "{ACM}",
	title         = "{XML data exchange: consistency and query answering}",
	year          = 2005,
}