@inproceedings{MoDELS-2015-AtkinsonGK15a,
	author        = "Colin Atkinson and Ralph Gerbig and Thomas Kühne",
	booktitle     = "{Proceedings of the 18th International Conference on Model Driven Engineering Languages and Systems}",
	doi           = "10.1109/MODELS.2015.7338252",
	isbn          = "978-1-4673-6908-4",
	pages         = "216--225",
	publisher     = "{IEEE}",
	title         = "{A unifying approach to connections for multi-level modeling}",
	year          = 2015,
}