Sotirios Terzis Paddy Nixon Nitya Narasimhan Tim Walsh Middleware for pervasive and ad hoc computing. 4-6 2006 10 Personal and Ubiquitous Computing 1 http://dx.doi.org/10.1007/s00779-005-0040-9 db/journals/puc/puc10.html#TerzisNNW06