Luis Antunes, Joćo Balsa, Paulo Urbano, Luis Moniz, Catarina Roseta Palma (2005) Tax compliance in a simulated heterogeneous multi-agent society, MABS, 2005.

Urbano, P. (2005) Playing in the Pheromone Playground, in Proc. of the EvoMUSART 2005, 3rd European Workshop on Evolutionary Music and Art, Lausanne, Switzerland, March-2005, Springer-Verlag.

Urbano, P, Coelho H, (2005). From Consensus to Consensus: Random evolution of collective choices. Proceedings of 12th EPIA 2005, IEEE.