Paolo Bellavista "Middleware for Next-Generation Converged Networks and Services: Myths or Reality?". 10-15 2007 conf/compsac/2007 COMPSAC (1) http://doi.ieeecomputersociety.org/10.1109/COMPSAC.2007.1 db/conf/compsac/compsac2007-1.html#Bellavista07