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) 伊藤 宗彦,Product Competitive Advantage and Product Architecture - Value Creation and Value Capture in the Digital Camera Industry,Kobe Economic & Business Review No.49,,,2005,,,101-124,https://cir.nii.ac.jp/crid/1010000781880595601,