1. Airbus, 2004. Global Market Forecast 2004–2023. Airbus S.A.S., Blagnac Cedex.
2. Airbus, 2007. Flying by nature: Global Market Forecast 2007–2026. Airbus S.A.S., Blagnac Cedex.
3. AirWise, 2006. AirWise – Flight schedules. Air Wise (Accessed 8.8.2006).
4. ATRS, Air Transport Research Society, 2005. Airport Benchmarking Report – 2005. ATRS, June.
5. Boeing, 2005. Current Market Outlook. Boeing Commercial Airplanes, July.