@inproceedings {AV10ICTAI,
	author		=	"L. Amgoud and S. Vesic",
	title		=	"On the role of preferences in argumentation frameworks",
	booktitle	=	"Proceedings of the 22nd International Conference on Tools in AI, (ICTAI'10)",
	year		=	2010,
	publisher	=	"IEEE",
	pages		=	"219-222"
}