1. ENISA, Cloud Computing; Benefits, Risks and Recommendations for Information Security, 2009 Edition, June 2014.
http://www.enisa.europe.eu
2. CSA, The Notorious Nine Cloud Computing Top Threats in 2013, June 2014.
https://downloads.cloudsecurityalliance.org/initiatives/top_threats/The_Notorious_Nine_Cloud_Computing_Top_Threats_in_2013.pdf
3. EU, Opinion 05/2012 on Cloud Computing (2012).
http://ec.europa.eu/justice/data-protection/article-29/documentation/opinion-recommendation/files/2012/wp196_en.pdf
4. CSA, Security, Trust & Assurance Registry (STAR), June 2014.
https://cloudsecurityalliance.org/star/#_registry
5. Kaplan, S., Garrick, B.J.: On the quantitative definition of risk. Risk Anal. 1(1), 11–27 (1981)