@article {15521,
	title = {Semantics for Disjunctive and Normal Disjunctive Logic Programs},
	journal = {Handbook of logic in artificial intelligence and logic programming},
	volume = {5},
	year = {1998},
	month = {1998///},
	pages = {325 - 325},
	author = {Lobo,J. and Minker, Jack and Rajasekar,A.}
}
