@Misc{Grandon2002,
  author     = {C. Grand\'on and R. Torres and M.C. Riff},
  title      = {Evaluaci\'on de algoritmos h\'ibridos basados en colonias 
                de hormigas para TSP},
  booktitle  = {The Fourth Chilean Operations Research Conference, OPTIMA 2001,
               Curic\'o, Chile},
  year	     = {2001},
  url        = {www-sop.inria.fr/coprin/cgrandon/Publica/index.html}
}