Gearoid Hynes Vinny Reynolds Manfred Hauswirth A Context Lifecycle for Web-Based Context Management Services. 51-65 2009 EuroSSC http://dx.doi.org/10.1007/978-3-642-04471-7_5 conf/eurossc/2009 db/conf/eurossc/eurossc2009.html#HynesRH09