@article {15539,
	title = {Bottom-up computation of perfect models for disjunctive theories},
	journal = {The Journal of logic programming},
	volume = {25},
	year = {1995},
	month = {1995///},
	pages = {33 - 51},
	author = {Fern{\'a}ndez,J. A. and Minker, Jack}
}
