Lei Wang 0030 Song Ma Xinhong Hei 0001 Research on an Immune Mechanism Based Intelligent Spam Filter. 673-676 2008 CSSE (3) https://doi.org/10.1109/CSSE.2008.1622 https://doi.ieeecomputersociety.org/10.1109/CSSE.2008.1622 conf/csse/2008-3 db/conf/csse/csse2008-3.html#WangMH08a