Ricky Robinson Karen Henricksen Jadwiga Indulska XCML: A Runtime Representation for the Context Modelling Language. 20-26 2007 conf/percom/2007w PerCom Workshops http://dx.doi.org/10.1109/PERCOMW.2007.140 db/conf/percom/percomw2007.html#RobinsonHI07