Oei, Michel, 		Maciel, Rita Suzana, 		David, José Maria, 		Bastos, Adriano, AND 		Menezes, Leandro.
" An Approach to Perception through Guidance to Aspects in a Groupware Infrastructure" <em>Proceedings of the Brazilian Symposium on Information Systems (SBSI)</em> [Online], (20 May 2009)