@inproceedings{SIGMOD-2009-BexGMN,
	author        = "Geert Jan Bex and Wouter Gelade and Wim Martens and Frank Neven",
	booktitle     = "{Proceedings of the 27th ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/1559845.1559922",
	isbn          = "978-1-60558-551-2",
	pages         = "731--744",
	publisher     = "{ACM}",
	title         = "{Simplifying XML schema: effortless handling of nondeterministic regular expressions}",
	year          = 2009,
}