1. Lecture Notes in Computer Science;D.H. Akehurst,2002
2. Czarnecki, K., Helsen, S.: Classification of Model Transformation Approaches. In: Workshop on Generative Techniques in the Context of Model-Driven Architecture (2003)
3. Object Management Group: Meta Object Facility (MOF) 2.0 Query/View/Transformation Specification (2007),
http://www.omg.org/cgi-bin/doc?ptc/2007-07-07
4. Lecture Notes in Computer Science;J.M. Küster,2007
5. Lecture Notes in Computer Science;H. Ehrig,2005