Alessandra Agostini Claudio Bettini Daniele Riboni A Performance Evaluation of Ontology-Based Context Reasoning. 3-8 2007 conf/percom/2007w PerCom Workshops http://dx.doi.org/10.1109/PERCOMW.2007.10 db/conf/percom/percomw2007.html#AgostiniBR07