M. zur Muehlen, and J. Recker. Advanced Information Systems Engineering, volume 5074 of Lecture Notes in Computer Science, Springer Berlin Heidelberg, (2008)
M. Weidlich, G. Decker, A. Großkopf, and M. Weske. On the Move to Meaningful Internet Systems: OTM 2008, volume 5331 of Lecture Notes in Computer Science, Springer Berlin Heidelberg, (2008)