@inproceedings{PPDP-2013-RobbinsHK,
	author        = "Edward Robbins and Jacob M. Howe and Andy King",
	booktitle     = "{Proceedings of the 15th International Conference on Principles and Practice of Declarative Programming}",
	doi           = "10.1145/2505879.2505901",
	isbn          = "978-1-4503-2154-9",
	pages         = "193--204",
	publisher     = "{ACM}",
	title         = "{Theory propagation and rational-trees}",
	year          = 2013,
}