- Marco Dorigo, Thomas Stützle, Maria J. Blesa, Christian Blum 0001, Heiko Hamann, Mary Katherine Heinrich, Volker Strobel, editors, Swarm Intelligence - 12th International Conference, ANTS 2020, Barcelona, Spain, October 26-28, 2020, Proceedings. Volume 12421 of Lecture Notes in Computer Science, Springer, 2020.