1. U.S. Department of Defense: Trusted Computer Systems Evaluation Criteria (Orange Book) (National Computer Security Center, Fort Meade 1985)
2. F.B. Schneider (Ed.): Trust in Cyberspace (National Academy Press, Washington 1998)
3. R. Shirey: RFC 4949 – Internet Security Glossary, Version 2 (IETF, 2007)
4. R. Anderson: Security Engineering: a Guide to Building Dependable Distributed Systems (John Wiley and Sons, Indianapolis 2008)
5. P.G. Neumann: Architectures and formal representations for secure systems, SRI Project 6401, Deliverable A002 (Computer Science Laboratory, SRI International, 1995)