@article{ICLP-J-2012-EiterFKR,
	author        = "Thomas Eiter and Michael Fink and Thomas Krennwallner and Christoph Redl",
	doi           = "10.1017/S1471068412000233",
	journal       = "{Theory and Practice of Logic Programming}",
	number        = "4-5",
	pages         = "659--679",
	title         = "{Conflict-driven ASP solving with external sources}",
	volume        = 12,
	year          = 2012,
}