Rejane Frozza <em>et al. </em>2007.
 Tutor and companion agents in an educational environment based on cognitive styles. In <em>Proceedings of the 1st Workshop-School on Agents, Environments, and Applications</em>, April 16, 2007, Pelotas/RS, Brasil. SBC, Porto Alegre, Brasil, 39-50. DOI: <a href="https://doi.org/10.5753/wesaac.2007.33033">https://doi.org/10.5753/wesaac.2007.33033</a>.