@inproceedings{SIGMOD-2007-WyssW,
	author        = "Catharine M. Wyss and Felix I. Wyss",
	booktitle     = "{Proceedings of the 25th ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/1247480.1247533",
	isbn          = "978-1-59593-686-8",
	pages         = "473--484",
	publisher     = "{ACM}",
	title         = "{Extending relational query optimization to dynamic schemas for information integration in multidatabases}",
	year          = 2007,
}