6Michael E P. Clusters and the new Economic of Competition [J]. Havard Business Review ,1998, (12): 10--12.
7Christian φ.R..Pedersen.Growth and spatial evolution of the Danish IT service industry:Random growth or urban effect?[R].EMAEE.2005:5,10-- 17.
8Bernard Fingleton,Danilo Igliori,Barry Moore.Cluster Dynamics: New Evidence and Projections for Computing Services in Great Britain [J].Economic Geography and Clusters, Vol 45 No 2.2005,(5): 283--288.
9Claus Steinle,Holger Schiele. When do industries cluster?A proposal on how to assess an industry's propenslty to concentrate at nation [J].tkesearch 849 - 858. a single region or Policy,2002, (31):
10Bernard Fingleton,Danilo Igliori,Barry Moore.Cluster Dynalnics: New Evidence and Projections for Computing Services in Great Britain [J].Economic Geography and Cluster, Vol 45. No 2.2005,(5): 283--288.