@inproceedings{StahlBB+IE05,
  author    = {Stahl, Christoph and Baus, Jörg and Brandherm, Boris 
               and Schmitz, Michael and Schwartz, Tim},
  title     = {Navigational- and Shopping Assistance on the Basis of
               User Interactions in Intelligent Environments},
  year      = {2005},
  booktitle = {Proceedings of the IEE International Workshop on 
               Intelligent Environments (IE)},
  address   = {University of Essex, Colchester, UK}}