@inproceedings{PPDP-2013-CaballeroST,
	author        = "Rafael Caballero and Peter J. Stuckey and Antonio Tenorio-Fornes",
	booktitle     = "{Proceedings of the 15th International Conference on Principles and Practice of Declarative Programming}",
	doi           = "10.1145/2505879.2505905",
	isbn          = "978-1-4503-2154-9",
	pages         = "217--227",
	publisher     = "{ACM}",
	title         = "{Finite type extensions in constraint programming}",
	year          = 2013,
}