Le-Hung Vu Fabio Porto Karl Aberer Manfred Hauswirth An Extensible and Personalized Approach to QoS-enabled Service Discovery. 37-45 2007 conf/ideas/2007 IDEAS http://doi.ieeecomputersociety.org/10.1109/IDEAS.2007.13 db/conf/ideas/ideas2007.html#VuPAH07