@inproceedings{SIGMOD-2002-FlorescuGKR,
	author        = "Daniela Florescu and Andreas Grünhagen and Donald Kossmann and Steffen Rost",
	booktitle     = "{Proceedings of the 20th ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/564691.564779",
	isbn          = "1-58113-497-5",
	pages         = "625",
	publisher     = "{ACM}",
	title         = "{XL: a platform for web services}",
	year          = 2002,
}