Journal of Hebei University (Natural Science Edition) ›› 2002, Vol. 22 ›› Issue (2): 124-128.DOI: 10.3969/j.issn.1000-1565.2002.02.005

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Research on Mechanism of Spatial Diffusion of Technological Innovation

  

  • Online:2002-05-25 Published:2002-05-25

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