@inproceedings{johnsen07fmco,
  author =	 {Einar Broch Johnsen and Olaf Owe and
                  Joakim Bj{\o}rk and Marcel Kyas},
  title =	 {An Object-Oriented Component Model 
                  for Heterogeneous Nets},
  booktitle =	 {Proc. 6th International Symposium on Formal Methods for
                  Components and Objects ({FMCO} 2007)},
  editor =	 {Frank S. de Boer and Marcello M. Bonsangue and
                  Susanne Graf and Willem-Paul de Roever},
  series =	 {Lecture Notes in Computer Science},
  volume =	 5382,
  publisher =	 {Springer-Verlag},
  pages =	 {257--279},
  year =	 2008
}