Julie A. McCann Mario Lauria Domenico Cotroneo Mark A. Baker Proceedings of the 2009 international conference on Pervasive services, ICPS '09, London, United Kingdom, July 13-17, 2009 ICPS ACM 2009 978-1-60558-644-1 https://doi.org/10.1145/1568199 db/conf/icps/icps2009.html