Theisen, Eloisa, 		Werlang, Márcia, 		Pazos, Rubén, AND 		Frozza, Rejane.
" Application of the van Hiele Scheme in the Teaching-Learning Process in a Reactive Multi-Agent System" <em>Proceedings of the Workshop-School on Agents, Environments, and Applications (WESAAC)</em> [Online], (28 May 2008)