@InProceedings{johnsen03nik,
  author =	 {Einar Broch Johnsen and Olaf Owe and Marte Arnestad},
  title =	 {Combining Active and Reactive Behavior in Concurrent
                  Objects},
  editor =       {Dag Langmyhr},
  booktitle =	 {Proc. of the Norwegian Informatics Conference (NIK'03)},
  year =	 2003,
  month =	 nov,
  pages =        "193--204",
  publisher =	 "Tapir Academic Publisher",
}