Sasu Tarkoma Christian Prehofer Anna V. Zhdanova Klaus Moessner Ernö Kovacs SPICE: Evolving IMS to Next Generation Service Platforms. 6 2007 conf/saint/2007w SAINT Workshops http://doi.ieeecomputersociety.org/10.1109/SAINT-W.2007.99 db/conf/saint/saint2007w.html#TarkomaPZMK07