1. Colley, J., Stettinius, W., Doyle, J., & Logan, G. (2005). What is corporate governance? New York, NY: McGraw-Hill.
2. Committee of Sponsoring Organizations of the Treadway Commission. (2004, September). Enterprise risk management - Integrated framework.
3. International Business Aviation council (IBAC). (2008, November). SMS guidance manual. Montreal, QC, Canada: International Business Aviation council (IBAC).
4. International Civil Aviation Organisation (ICAO). (2009). ICAO Doc 9859, Safety Management Manual (SMM). Montréal, QC, Canada: International Civil Aviation Organisation (ICAO).
5. Jermann, P. (2011). Aviation governance. St. Gallen: University of St. Gallen.