@inproceedings{LICS-1991-CortesiFW,
	author        = "Agostino Cortesi and Gilberto Filé and William H. Winsborough",
	booktitle     = "{Proceedings of the Sixth Annual Symposium on Logic in Computer Science}",
	doi           = "10.1109/LICS.1991.151656",
	isbn          = "0-8186-2230-X",
	pages         = "322--327",
	publisher     = "{IEEE Computer Society}",
	title         = "{Prop revisited: Propositional Formula as Abstract Domain for Groundness Analysis}",
	year          = 1991,
}