@article{ICMT-J-2012-AtkinsonGT15,
	author        = "Colin Atkinson and Ralph Gerbig and Christian Vjekoslav Tunjic",
	doi           = "10.1007/s10270-013-0384-y",
	journal       = "{Software and System Modeling}",
	number        = 2,
	pages         = "645--666",
	title         = "{Enhancing classic transformation languages to support multi-level modeling}",
	volume        = 14,
	year          = 2015,
}