@article{VLDB-2013-SavkovicPTN,
	author        = "Ognjen Savkovic and Paramita Mirza and Alex Tomasi and Werner Nutt",
	ee            = "http://www.vldb.org/pvldb/vol6/p1378-savkovic.pdf",
	journal       = "{Proceedings of the VLDB Endowment}",
	number        = 12,
	pages         = "1378--1381",
	title         = "{Complete Approximations of Incomplete Queries}",
	volume        = 6,
	year          = 2013,
}