@inbook {3cd55641bf934afda1a91ba8091efb78,
	title = {DEFAULT THEORY FOR WELL FOUNDED SEMANTICS WITH EXPLICIT NEGATION},
	booktitle = {Lecture Notes in Artificial Intelligence},
	volume = {633},
	year = {1992},
	note = {n/a},
	month = {1},
	pages = {339{\textendash}356},
	abstract = {n/a},
	isbn = {3-540-55887-X},
	doi = {10.1007/BFb0023437},
	author = {Alferes, {Jos{\'e} J{\'u}lio Alves}}
}
