BELLAVISTA P.; CORRADI A.; FOSCHINI L., MUM: a Middleware for the Provisioning of Continuous Services to Mobile Users, in: ANTONIO PULIAFITO AND SYMEON PAPAVASSILIOU (EDS.), 9th IEEE International Symposium on Computers and Communications (ISCC'04), LOS ALAMITOS, CALIFORNIA, IEEE Computer Society Press, 2004, pp. 498 - 505 (atti di: 9th IEEE International Symposium on Computers and Communications (ISCC'04), , Luglio 2004) [Contributo in Atti di convegno]