3[3]Paul Krugrman. Increasing Returns and Economic Geography[J]. Journal of Political Economy, 1991, (3).
4[4]Walz,U. Transport Costs, Intermediate Goods, and Localized Growth[J]. Regional Science and Urban Economics, 1996, (6).
5[5]Martin, L. Sequential Location Contests in the Presence of Agglomeration Economies[J]. Working Paper,University of Washington, 1999.
6[6]Quah, D. Internet Cluster Emergence[J]. CERR Discussion Paper, 1999.
7[7]Bergman, E. M. & Feser, E. J. Industrial and Regional Clusters: Concept, and Comparative Applications[M]. The Web Book of Regional Science, 1999,Regional Research Institute,WVU.
8[8]David B. Audretsch & Maryann P. Feldman. R&D Spillovers and the Geograhpy of Innovation and Production[J]. American Economic Review, 1996, (3).
9[9]Porter, M. E. The Competitive Advangage of Nations[M]. New Youk: Free Press, 1996.
10[10]Paul Krugman, Masahisa Fujita and Anthony J. Venables The Spatial Economy: Cities, Regions and International Trade[M]. Cambridge: MIT Press, 1999.
