@inproceedings{PODS-2003-SeidlSM,
	author        = "Helmut Seidl and Thomas Schwentick and Anca Muscholl",
	booktitle     = "{Proceedings of the 22nd Symposium on Principles of Database Systems}",
	doi           = "10.1145/773153.773169",
	isbn          = "1-58113-670-6",
	pages         = "155--166",
	publisher     = "{ACM}",
	title         = "{Numerical document queries}",
	year          = 2003,
}