7 Streitz, Norbert Kameas, Achilles Mavrommati, Irene (Eds.) 2007 The Disappearing Computer: Interaction Design, System Infrastructures and Applications for Smart Environments. Lecture Notes in Computer Science Springer; Heidelberg 4500 304 978-3-540-72725-5 http://www.springer.com/east/home/generic/search/results?SGWID=5-40109-22-173740714-0