1. The small package air freight industry in the United States: A review of the Federal Express experience;Chan;Transpn. Res.,1979
2. Overnight air express: Spatial pattern, competition and the future in small package delivery services;Chestler;Transpn. Q.,1985
3. The revolution in the air courier/express industry;Emery,1986
4. Federal Express: Big, bigger and biggest;Feldman;Air Transp. World,1985
5. The impact of changes in the environment on an airline network;Finnegan,1984