1. ITU-T. NGN identity management framework. Recommendation Y.2720
2. ITU-T. Baseline capabilities for enhanced global identity management trust and interoperability. Draft New Recommendation ITU-T X.1250 (X.idmreq) (February 2009)
3. ISO/ITU-T. The Directory: Models ISO 9594-2/ITU-T Rec. X.501 (2009)
4. Bob Morgan, R.L., Cantor, S., Carmody, S., Hoehn, W., Klingenstein, K.: Federated Security: The Shibboleth Approach. Educause Quarterly 27(4) (2004)
5. Nanda, A., Jones, M.B.: Identity Selector Interoperability Profile v1.5. Microsoft Corporation (July 2008),
http://download.microsoft.com/download/1/1/a/11ac6505-e4c0-4e05-987c-6f1d31855cd2/Identity_Selector_Interoperability_Profile_V1.5.pdf