Hai Dong Farookh Khadeer Hussain Elizabeth Chang Application of Protégé and SPARQL in the Field of Project Knowledge Management. 74 2007 ICSNC http://doi.ieeecomputersociety.org/10.1109/ICSNC.2007.22 conf/icsnc/2007 db/conf/icsnc/icsnc2007.html#DongHC07