@article{VLDB-2010-HerschelH,
	author        = "Melanie Herschel and Mauricio A. Hernández",
	ee            = "http://www.comp.nus.edu.sg/~vldb2010/proceedings/files/papers/R16.pdf",
	journal       = "{Proceedings of the VLDB Endowment}",
	number        = 1,
	pages         = "185--196",
	title         = "{Explaining Missing Answers to SPJUA Queries}",
	volume        = 3,
	year          = 2010,
}