@inproceedings {ME2:InvariantPreservation,
	title = {Invariant Preservation in Iterative Modeling},
	journal = {Proceedings of the Fourth International Workshop on Models and Evolution},
	year = {2012},
	publisher = {ACM},
	author = {L{\'u}cio, Levi and Syriani, Eugene and Amrani, Moussa and Zhang, Qin and Hans Vangheluwe}
}
