1. Airbus, 2009. Global Market Forecast 2009–2028. Corporate Information, Airbus, Market Analysis.
2. High-speed rail;Albalate;Public Adm. Rev.,2012
3. Including aviation emissions in the EU ETS: much ado about nothing?;Anger;A review, Transp. Policy,2010
4. Demand for air travel in the United States;Bhadra;J. Air Transp.,2003
5. Boeing, 2009. Current Market Outlook 2009–2028, Corporate Information, Boeing Commercial Airplanes, Market Analysis.