Raffaele Giaffreda Hannes Tschofenig Theo Kanter Christoph Reichert An Authorisation and Privacy Framework for Context-Aware Networks. 149-160 2005 conf/mata/2005 MATA http://dx.doi.org/10.1007/11569510_15 db/conf/mata/mata2005.html#GiaffredaTKR05