Paolo Busetta Tsvi Kuflik Mattia Merzi Silvia Rossi Service Delivery in Smart Environments by Implicit Organizations. 356-363 2004 conf/mobiquitous/2004 MobiQuitous http://doi.ieeecomputersociety.org/10.1109/MOBIQ.2004.1331742 db/conf/mobiquitous/mobiquitous2004.html#BusettaKMR04