Dafan Dong Jianzhong Zhang 0003 Ying Wu Hongbo Lu Gongyi Wu A Spam Filter System Based on P2P Architecture. 155-156 2008 NAS http://doi.ieeecomputersociety.org/10.1109/NAS.2008.32 conf/iwnas/2008 db/conf/iwnas/nas2008.html#DongZWLW08