@article{LDTA-2009-AndersenB10,
	author        = "Jacob Andersen and Claus Brabrand",
	doi           = "10.1016/j.entcs.2010.08.029",
	journal       = "{Electronic Notes in Theoretical Computer Science}",
	number        = 7,
	pages         = "19--35",
	title         = "{Syntactic Language Extension via an Algebra of Languages and Transformations}",
	volume        = 253,
	year          = 2010,
}