Cristescu, M. P., C. I. Cristescu, L. Cacovean, and F. Martin. “The Cost Influence on Reliability and Security of the Software Systems”. Journal of Mobile, Embedded and Distributed Systems, vol. 2, no. 2, Dec. 2010, pp. 69-73, http://jmeds.eu/index.php/jmeds/article/view/23.