@inproceedings {AV09IJCAI,
	author		=	"L. Amgoud and S. Vesic",
	title 		=       "Repairing Preference-Based Argumentation Systems",
	booktitle 	=	"Proceedings of the 21st International Joint Conference
					on Artificial Intelligence, (IJCAI'09)",
	editor 		=	"Craig Boutilier",
	publisher 	=	"AAAI Press",
	year 		=	2009,
	pages		=	"665-670"
}