@inbook {MM, title = {Metamodelling: State of the Art and Research Challenges}, booktitle = {Model-Based Engineering of Embedded Real-Time Systems}, series = {Lecture Notes in Computer Science}, volume = {6100}, year = {2011}, pages = {57 {\textendash} 76}, chapter = {3}, doi = {\url{http://dx.doi.org/10.1007/978-3-642-16277-0}}, author = {Jonathan Sprinkle and Rumpe, Bernhard and Hans Vangheluwe and Karsai, Gabor} }