@inproceedings{PPDP-2005-LiL,
	author        = "Xuan Li and Lunjin Lu",
	booktitle     = "{Proceedings of the Seventh International Conference on Principles and Practice of Declarative Programming}",
	doi           = "10.1145/1069774.1069786",
	isbn          = "1-59593-090-6",
	pages         = "129--138",
	publisher     = "{ACM}",
	title         = "{Inverting abstract unification for set-sharing}",
	year          = 2005,
}