1. Howard, J.D., Longstaff, T.A.: A Common Language for Computer Security Incidents (SAND98-8667); Sandia National Laboratories. 1998 (0-201-63346-9), Forschungsbericht (1998)
2. Dittmann, J.: Course: Fundamentals of IT-Security, Summer Term 2005 (2005)
3. Innovation Electronics (UK) Ltd., Health & Safety Laboratory: A methodology for the assignment of safety integrity levels (SILs) to safety-related control functions implemented by safety-related electrical, electronic and programmable electronic control systems of machines; Health and Safety Laboratory. Forschungsbericht (2004)
4. Anderson, R.: Security Engineering. In: A Guide to Building Dependable Distributed Systems.: A Guide to Building Dependable Distributed System, Wiley, New York (2001)
5. Tulloch, M.: Microsoft Encyclopedia of Security. Microsoft Press (2003), ISBN 0-7356-1877-1