Secure Collaboration in a Mediator-Free Distributed Environment.

Mohamed Shehab Arif Ghafoor Elisa Bertino Secure Collaboration in a Mediator-Free Distributed Environment. 1338-1351 2008 19 IEEE Trans. Parallel Distrib. Syst. 10 http://dx.doi.org/10.1109/TPDS.2008.26 db/journals/tpds/tpds19.html#ShehabGB08