S. Rosa, G. Dimuro, and A. Costa.
" Extending the PopOrg Multi-Agent System Organization Model with Recursive Organizational Units", in <em>Proceedings of the 4th Workshop-School on Agents, Environments, and Applications</em>, Rio Grande/RS, 2010, pp. 143-146, doi: <a href="https://doi.org/10.5753/wesaac.2010.33063">https://doi.org/10.5753/wesaac.2010.33063</a>.