@inproceedings{PODS-1994-GrahneNU,
	author        = "Gösta Grahne and Matti Nykänen and Esko Ukkonen",
	booktitle     = "{Proceedings of the 13th Symposium on Principles of Database Systems}",
	doi           = "10.1145/182591.182656",
	isbn          = "0-89791-642-5",
	pages         = "303--312",
	publisher     = "{ACM Press}",
	title         = "{Reasoning about Strings in Databases}",
	year          = 1994,
}