Lars Erik Holmquist Hans-Werner Gellersen Gerd Kortuem Albrecht Schmidt Martin Strohbach Stavros Antifakos Florian Michahelles Bernt Schiele Michael Beigl Ramia Mazé Building Intelligent Environments with Smart-Its. 56-64 2004 24 IEEE Computer Graphics and Applications 1 http://csdl.computer.org/comp/mags/cg/2004/01/g1056abs.htm db/journals/cga/cga24.html#HolmquistGKSSAMSBM04