@inproceedings{PPDP-2000-PelovB,
	author        = "Nikolay Pelov and Maurice Bruynooghe",
	booktitle     = "{Proceedings of the Second International Conference on Principles and Practice of Declarative Programming}",
	doi           = "10.1145/351268.351295",
	pages         = "235--244",
	title         = "{Extending constraint logic programming with open functions}",
	year          = 2000,
}