@article{VLDB-2011-MeliouGMS,
	author        = "Alexandra Meliou and Wolfgang Gatterbauer and Katherine F. Moore and Dan Suciu",
	ee            = "http://www.vldb.org/pvldb/vol4/p34-meliou.pdf",
	journal       = "{Proceedings of the VLDB Endowment}",
	number        = 1,
	pages         = "34--45",
	title         = "{The Complexity of Causality and Responsibility for Query Answers and non-Answers}",
	volume        = 4,
	year          = 2010,
}