Paolo Bellavista Antonio Corradi Luca Foschini An IMS-Based Middleware Solution for Energy-Efficient and Cost-Effective Mobile Multimedia Services. 280-294 2009 MOBILWARE http://dx.doi.org/10.1007/978-3-642-01802-2_21 conf/mobilware/2009 db/conf/mobilware/mobilware2009.html#BellavistaCF09