Celesti, A., F. Tusa, M. Villari, and A. Puliafito,  "An Approach For The Composition Of Generic Cloud-based Services Using Xri-based Apis For Enabling New E-business",  International Journal of E-Business Development, vol. 3, issue 2, pp. 64?74, 05/2013.

Celesti, A., A. Puliafito, F. Tusa, and M. Villari,  "Towards Energy Sustainability in Federated and Interoperable Clouds",  Communication Infrastructures for Cloud Computing, Hershey, Pennsylvania, US, IGI Global Publisher, pp. 329?350, 2013.

Celesti, A., F. Tusa, M. Villari, and A. Puliafito,  "Federation Between Clever Clouds Through Sasl/shibboleth Authentication",  INTERNET 2012, The Third International Conference on Evolving Internet: IARIA, pp. 77?84, 2012.

Celesti, A., F. Tusa, M. Villari, and A. Puliafito,  "Federation Establishment Between Clever Clouds Through A Saml Sso Authentication Profile",  INTERNATIONAL JOURNAL ON ADVANCES IN INTERNET TECHNOLOGY, vol. 5, issue 1-2, pp. 23?36, 2012.

Villari, M., F. Longo, M. Paone, F. Tusa, and M. C. Jaeger,  "How a structured testbed enables the rapid development and deployment of cloud services: The VISION Cloud use case",  Proceedings of the 17th IEEE Symposium on Computers and Communications (ISCC), Cappadocia, Turkey, 1-4 July 2012, IEEE Computer Society, pp. 820-826, 2012.

Villari, M., F. Tusa, A. Celesti, and A. Puliafito,  "How To Federate Vision Clouds Through Saml/shibboleth Authentication",  LECTURE NOTES IN COMPUTER SCIENCE, vol. 7592/2012, pp. 259?274, 21 September 2012.

Tusa, F., A. Celesti, M. Paone, M. Villari, and A. Puliafito,  "An Innovative Open Source Middleware For Managing Virtual Resources In Federated Clouds",  Open Source Cloud Computing Systems: Practices and Paradigms, Hershey, Pennsylvania, IGI Global, pp. 61?89, 2012.

Celesti, A., F. Tusa, M. Villari, and A. Puliafito,  "Integration Of Clever Clouds With Third Party Software Systems Through A Rest Web Service Interface",  The 17th IEEE Symposium on Computers and Communication (ISCC12), Los Alamitos, IEEE Computer Society, pp. 827?832, 4/07/2012.

Celesti, A., F. Tusa, and M. Villari,  "Toward The Intercloud: Concepts And Advantages",  Achieving Federated and Self-Manageable Cloud Infrastructures: Theory and Practice, Hershey, Pennsylvania, IGI Global, pp. 1?17, 2012.

Celesti, A., F. Tusa, M. Villari, and A. Puliafito,  "An Xdi-based Approach To Represent And Exchange Data Between Federated Clouds",  International Journal On Advances in Internet Technology, vol. 5, issue 1-2, pp. 1?10, 2012.

Tusa, F., A. Celesti, and R. Mikkilineni,  AAA in a Cloud-Based Virtual DIME Network Architecture (DNA),  : IEEE Computer Society, pp. 110?115, 29, 2011.

Celesti, A., F. Tusa, M. Villari, and A. Puliafito,  "An Approach To Enable Cloud Service Providers To Arrange Iaas, Paas, And Saas Using External Virtualization Infrastructures",  Services (SERVICES), 2011 IEEE World Congress on, Los Alamitos, CA, IEEE Computer Society, pp. 607?611, 9, 2011.

Celesti, A., F. Tusa, M. Villari, and A. Puliafito,  "Evaluating A Distributed Identity Provider Trusted Network With Delegated Authentications For Cloud Federation",  The Second International Conference on Cloud Computing, GRIDs, and Virtualization (Cloud Computing 2011), 30 Settembre 2011, Rome, Italy: IARIA, pp. 79?85, 2011.

Celesti, A., F. Tusa, M. Villari, and A. Puliafito,  "Evaluating An Open Source Extensible Resource Identifier Naming System For Cloud Computing Environments",  Third International Conference on Evolving Internet (INTERNET 2011): IARIA, pp. 26?31, 2011.

Tusa, F., A. Celesti, M. Paone, M. Villari, and A. Puliafito,  "How Clever-based Clouds Conceive Horizontal And Vertical Federations",  Computers and Communications (ISCC), 2011 IEEE Symposium on, Los Alamitos, CA, IEEE Computer Society, pp. 167?172, 2011.

Celesti, A., F. Tusa, M. Villari, and A. Puliafito,  "Intercloud: The Future Of Cloud Computing. Concepts And Advantages",  Cloud Computing: Methodology, Systems, and Applications, Boca Raton, Florida, CRC Press, Taylor and Francis Group, pp. 167?194, 2011.

Celesti, A., F. Tusa, M. Villari, and A. Puliafito,  "How To Enhance Cloud Architectures To Enable Cross-Federation",  Cloud Computing (CLOUD), 2010 IEEE 3rd International Conference on, Washington, DC, IEEE Computer Society, pp. 337?345, 10 July, 2010.

Celesti, A., F. Tusa, M. Villari, and A. Puliafito,  "Improving Virtual Machine Migration In Federated Cloud Environments",  Evolving Internet (INTERNET), 2010 Second International Conference on, Washington, DC, IEEE Computer Society, pp. 61?67, 25 September, 2010.

Celesti, A., F. Tusa, M. Villari, and A. Puliafito,  "Security and Cloud Computing: InterCloud Identity Management Infrastructure",  Enabling Technologies: Infrastructures for Collaborative Enterprises (WETICE), 2010 19th IEEE International Workshop on, Washington, DC, IEEE Computer Society, pp. 263?265, 30/06/2010.

Celesti, A., F. Tusa, M. Villari, and A. Puliafito,  "Three-phase Cross-cloud Federation Model: The Cloud Sso Authentication",  AFIN '10 Proceedings of the 2010 Second International Conference on Advances in Future Internet, Washington, DC, IEEE Computer Society, pp. 94?101, 25 July, 2010.