@inproceedings{rubio2013supporting, title={Supporting secure collaborations with attribute-based access control}, author={Rubio-Medrano, Carlos E and D'Souza, Clinton and Ahn, Gail-Joon}, booktitle={Collaborative Computing: Networking, Applications and Worksharing (Collaboratecom), 2013 9th International Conference Conference on}, pages={525--530}, year={2013}, organization={IEEE} }