@inproceedings{FLOPS-2004-Oostrom,
	author        = "Vincent van Oostrom",
	booktitle     = "{Proceedings of the Seventh International Symposium on Functional and Logic Programming}",
	doi           = "10.1007/978-3-540-24754-8_14",
	isbn          = "3-540-21402-X",
	pages         = "180--195",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Sub-Birkhoff}",
	volume        = 2998,
	year          = 2004,
}