L. Macedo, M. Ribeiro, S. Brião, C. Fonseca, M. Aguiar, and G. Dimuro. " Multi-Agent Simulation of an Evolutionary and Spatial Approach to the Ultimatum Game", in Proceedings of the 6th Workshop-School on Agents, Environments, and Applications, Florianópolis/SC, 2012, pp. 35-46, doi: https://doi.org/10.5753/wesaac.2012.33133.