Acm Computing Surveys, 43 (2011), 4; 1 - 33.
Talk: DSML'08, Workshop co-located with Modellierung 2008, Berlin, Deutschland; 03-14-2008; in: “DSML'08 Workshop @ Modellierung'08”, W. Reisig et al. (ed.); Humboldt-Universität zu Berlin, Informatik-Bericht Nr. 221 (2008), ISSN: 0863-095x; 31 - 44.
International Journal of Web Information Systems (IJWIS), 4 (2008), 3; 234 - 305.
Talk: The 7th OOPSLA Workshop on Domain-Specific Modeling, Montreal, Kanada; 10-21-2007 - 10-22-2007; in: “Proceedings of the 7th OOPSLA Workshop on Domain-Specific Modeling (DSM´07)", J. Sprinkle, J. Tolvanen, J. Gray, M. Rossi (ed.); Computer Science and Information System Reports, University of Jyväskylä, Finland, Technical Reports, TR-38, (2007), ISBN: 978-951-39-2915-2; 97 - 104.
Talk: Model Management und Metadaten-Verwaltung BTW 2007 Workshop, Aachen; 03-05-2007 - 03-09-2007; in: “Datenbanksysteme in Business, Technologie und Web (BTW 2007), Workshop Proceedings”, Verlag Mainz, (2007), ISBN: 3-86130-929-7; 38 - 52.
in: “7th International Conference on Web Engineering, Workshop Proceedings”, Dipartimento di Elettronica e Informazione, Politecnico di Milano, Italy, 2007, ISBN: 978-88-902405-2-2, 246 - 254.