1. Secure authentication process for high sensitive data e-services: A roadmap.;C. A.Agostino;International Journal of Enterprise Information Systems,2009
2. Ardagna, A. C., & Damiani, E. (2002). Towards securing XML web services. In Proceedings of the ACM Workshop on XML Security, Washington, DC (pp. 71-86).
3. Arsenault, A., & Turner, S. (2002). Internet X.509 Public Key Infrastructure: Roadmap. Retrieved from http://tools.ietf.org/html/draft-ietf-pkix-roadmap-09
4. Atkinson, B., Della, G. L., Hada, S., Hondo, M., Hallam-Baker, P., Kaler, C., et al. (2002). Web services security (WS-Security). Retrieved from http://msdn.microsoft.com/library/en-us/dnglobspec/html/ws-security.asp
5. Enterprise Information Systems and B2B E-Commerce