Yue Zhang 0001 Kwei-Jay Lin Raymond Klefstad DIRECT: A Robust Distributed Broker Framework for Trust and Reputation Management. 21 2006 conf/wecwis/2006 CEC/EEE http://doi.ieeecomputersociety.org/10.1109/CEC-EEE.2006.35 db/conf/wecwis/cec2006.html#ZhangLK06