Chia-Mei Chen Bingchiang Jeng Chia Ru Yang Gu Hsin Lai Tracing Denial of Service Origin: Ant Colony Approach. 286-295 2006 conf/evoW/2006 EvoWorkshops http://dx.doi.org/10.1007/11732242_26 db/conf/evoW/evoW2006.html#ChenJYL06