1. Bernstein, P.A.: Repositories and Object Oriented Databases, Proc. Conf. BTW’97, Ulm, March 1997, Springer-Verlag, pp. 34–46.
2. Czarnecki, K., Eisenecker, U.W.: Generative Programming: Methods, Tools and Applications, Addison-Wesley, 2000.
3. Demuth, B., Hussmann, H., Obermaier, S.: Experiments with XMI-based Transformations of Software Models, in: Online Proc. WTUML: Workshop on Transformations in UML (ETAPS 2001 Satellite Event), Genova, Apr. 2001,
http://ase.arc.nasa.gov/wtuml01/
4. Dumas, M., ter Hofstede, A.H.M.: UML Activity Diagrams as a Workflow Specification Language, in: Proc. Int. Conf. UML 2001, Toronto, Oct. 2001, Springer-Verlag, pp. 76–90.
5. Keienburg, F., Rausch, A.: Using XML/XMI for Tool Supported Evolution of UML Models, in: Proc. Int. Conf. HICSS’01, Maui, Jan. 2001, IEEE, 2001.