@InProceedings{kofod-petersen06:_using_activ_theor_to_model_contex_awaren,
  author =	 {Anders Kofod-Petersen and J\"{o}rg Cassens},
  year =	 2006,
  title =	 {Using Activity Theory to Model Context Awareness},
  booktitle =	 {Modeling and Retrieval of Context: Second
                  International Workshop, MRC 2005, Revised Selected
                  Papers},
  pages =	 {1-17},
  editor =	 {Thomas R. Roth-Berghofer and Stefan Schulz and David
                  B. Leake},
  volume =	 {3946},
  series =	 {Lecture Notes in Computer Science},
  address =	 {Edinburgh, Scotland},
  publisher =	 {Springer Verlag}                  
}