PDF(735 KB)
Study on the Spatial Difference of Patent in Force In China based on GeoDA-GIS
Yang Zhongkai Shen Luwei
Library and Information Service ›› 2011, Vol. 55 ›› Issue (10) : 69-73.
PDF(735 KB)
PDF(735 KB)
Study on the Spatial Difference of Patent in Force In China based on GeoDA-GIS
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