@inproceedings{PPDP-2004-BrasselHHV,
	author        = "Bernd Braßel and Michael Hanus and Frank Huch and Germán Vidal",
	booktitle     = "{Proceedings of the Sixth International Conference on Principles and Practice of Declarative Programming}",
	doi           = "10.1145/1013963.1013984",
	isbn          = "1-58113-819-9",
	pages         = "179--190",
	publisher     = "{ACM}",
	title         = "{A semantics for tracing declarative multi-paradigm programs}",
	year          = 2004,
}