Universal Multiservice Networks Third European Conference, ECUMN 2004, Porto, Portugal, October 25-27. 2004, Proceedings - Freire, Mário Marques; Freire, Mário Marques; Chemouil, Prosper; Chemouil, Prosper; Lorenz, Pascal; Lorenz, Pascal; Gravey, Annie; Gravey, Annie (Springer Berlin Heidelberg : Imprint: Springer, 2004)