@inproceedings{PODS-2010-FanG,
	author        = "Wenfei Fan and Floris Geerts",
	booktitle     = "{Proceedings of the 29th Symposium on Principles of Database Systems}",
	doi           = "10.1145/1807085.1807109",
	isbn          = "978-1-4503-0033-9",
	pages         = "169--178",
	publisher     = "{ACM}",
	title         = "{Capturing missing tuples and missing values}",
	year          = 2010,
}