Leão, Felipe, 		Puntar, Sergio, 		Azevedo, Leonardo, 		Baião, Fernanda, AND 		Cappelli, Claudia.
" Control of Data Access in Information Systems through Identity Propagation Mechanisms and Execution of Authorization Rules" <em>Proceedings of the Brazilian Symposium on Information Systems (SBSI)</em> [Online], (23 May 2011)