@inproceedings{KR-2008-LianW,
	author        = "Espen H. Lian and Arild Waaler",
	booktitle     = "{Proceedings of the 11th International Conference on Principles of Knowledge Representation and Reasoning}",
	ee            = "http://www.aaai.org/Library/KR/2008/kr08-048.php",
	isbn          = "978-1-57735-384-3",
	pages         = "496--506",
	publisher     = "{AAAI Press}",
	title         = "{Computing Default Extensions by Reductions on OR}",
	year          = 2008,
}