Swarm Intelligence 8th International Conference, ANTS 2012, Brussels, Belgium, September 12-14, 2012. Proceedings - Dorigo, Marco; Birattari, Mauro; Blum, Christian; Christensen, Anders Lyhne; Engelbrecht, Andries P.; Groß, Roderich; Stützle, Thomas (Springer Berlin Heidelberg : Imprint: Springer, 2012)