6Porter M.The competitive advantage of nations[J].Harvard Business Review,1990,68 (2):73-93.
7Asheim B.Regional innovation systems:The integration of local sticky and global ubiquitous knowledge[J].Journal of Technology Transfer,2002,27 (2):77-86.
8Martin R,Sunley P.Deconstructing clusters:Chaotic concept or policy panacea?[J].Journal of Economic Ge ography,2003,3(1):37-56.
9Shilton L,Stanley C.Spatial patterns of headquarters[J].Journal of Real Estate Research,1999,17(3):341-364.
10Hooisoh P,Dward B.Networks of innovators:A longitudinal perspective[J].Research Policy,2003,32:1569-1588
