References: [1] The ACFE’s 2012 Report to the Nations on Occupational Fraud and Abuse, www.acfe.com [2] Bezlov, T., Gounev, P., Petrunov, G., Tzenkov, E., Tzvetkova, M. (2007). Organised Crime in Bulgaria: Markets and Trends. Sofia: Center for the Study of Democracy. [3] Open Society Institute Bulgaria: Schengen: Effects for Bulgaria, Sofia, 2008, ISBN 978-954-9828-63-4 (translated form Bulgarian language) [4] Popov, G., Dokov, Ia. (2014). Automated Expert System for Prevention of Custom Violations, Challenges in Higher Education & Research, vol. 12, Heron Press, Sofia. |