3WINKELMANS W. Towards a research into island and ma- inland seaport location patterns by means of factor analysis [ J ]. Empirical Economics, 1977,2 (3) : 137 - 138.
4HAEZENDONCK E, VAN DEN BROECK, JANS T. Ana- lysing the lobby-effect if port competitiveness' determi- nants- a stochastic frontier approach [ J ]. Journal of Produc- tivity Analysis, 2011,36 (2) : 113 - 123.
