Elizabeth Ferreira Gouvea Goldbarg Givanaldo R. de Souza Marco César Goldbarg Particle Swarm for the Traveling Salesman Problem. 99-110 2006 conf/evoW/2006cop EvoCOP http://dx.doi.org/10.1007/11730095_9 db/conf/evoW/evocop2006.html#GoldbargSG06