Babak A. Farshchian Josip Zoric Lars Mehrmann Alison Cawsey M. Howard Williams Patrick Robertson Christian Hauser Developing pervasive services for future telecommunication networks. 977-982 2004 conf/iadis/2004icwi ICWI db/conf/iadis/icwi2004.html#FarshchianZMCWRH04