Figueiredo, João, 		Motta, Gustavo, 		Serafim, Eduardo, 		Pizzol, Diego, AND 		Duarte, Rodrigo.
" Distributed Federated Model for Authorization and Secure Multilateral Communication Between Healthcare Institutions" <em>Proceedings of the Brazilian Symposium on Computing Applied to Health (SBCAS)</em> [Online], (20 July 2010)