5Jan· Owen· Jansson and DanShneerson. Port Economics, MIT Press, 1982.
6Hayuth· Y. Containerization and the load center concept. Economics Geography, Vol57-2, 1981.
7Beatriz Tovar, Sergio Jara--D i az, Lourdes Trujillo. A Multioutput Cost Function for Port Terminals-Some Guidelines for Regulation. World Bank Policy Research Working Paper 3151, October, 2003.
8Hugh· Turner etc. North American container port productivity: 1984- 1997, Transportation Research, Part E:Logistics and Transportation Review, July 2004.
9Sergio·R·Jara-Diazetc,Amultioutput cost function for the services of Spainish port's infrastructure,Transportation.,29:2002