1. Competition and innovation. An inverted U relationship;Aghion;Q. J. Econ.,2002
2. Study on the Impact of Directive 96/67/EC on Ground Handling Service 1996-2007;Airport Research Center,2009
3. Analysis of Competition Structure and Its Development in the Ground Handling Sector at Airports;Beyer,2010
4. Economic Analysis of the Freight Handling Market at Schiphol;Burghouwt,2011
5. Grip on the Ground. Economic Analysis of the Freight Handling Market at Schiphol;Burghouwt,2012