1. Penny, J., Eaton, A., Bishop, P., Bloomfield, R.: The Practicalities of Goal-Based Safety Regulation. In: Proc. Ninth Safety-critical Systems Symposium (SSS 2001), Bristol, UK, February 6-8, pp. 35–48. Springer, New York (2001) ISBN:1-85233-411-8
2. http://www.liwem.org/en/Documents/LIWEM_2012_presentations_uppdaterad%20aug%202012_del3.pdf
(accessed on June 30, 2013)
3. Kelly, T.P., McDermid, J.A., Weaver, R.A.: Goal-Based Safety Standards: Opportunities and Challenges. In: Proceedings of the 23rd International System Safety Conference. Proceedings Published by the System Safety Society (August 2005)
4. Bowen, J.: The Ethics of Safety Critical Systems. Communications of the ACM 43(4), 91–97 (2000)
5. http://www.cs.trinity.edu/~jhowland/cs3194/licensing-software-engineers.pdf
(accessed June 30, 2014)