8Charnes A, Cooper W W, Li S. Using DEA to evaluate relative efficiencies in the economic performance of Chinese Cities[M]. Socio-Economic Planning Sciences, 1989.
3Nicolas Samsoen.From star system to ring hub[C]//Proceedings7th World Congress on High Speed Rail.Beijing High Speed,2010.
4Andres Lopez-pita,Francesc Robuste anton.The effect of high-speed rail on the reduction of air traffic congestion[J].Journal of public transportation,2003,6(1).
