Damien Fournier Sonia Ben Mokhtar Nikolaos Georgantas Valérie Issarny Towards ad hoc contextual services for pervasive computing. 36-41 2006 MW4SOC http://doi.acm.org/10.1145/1169091.1169097 conf/middleware/2006mw4soc db/conf/middleware/mw4soc2006.html#FournierMGI06