著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Geoffrey G. Bell,"Clusters, networks, and firm innovativeness",Strategic Management Journal,0143-2095,Wiley,2005,26,3,287-295,https://cir.nii.ac.jp/crid/1360011146062446336,https://doi.org/10.1002/smj.448