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) ,Retail Market Structure and the Threat by the Manufacturer to Sell Goods Directly to the Consumer,Socio-Economic Planning Sciences v.39,,,2005,,,43-55,https://cir.nii.ac.jp/crid/1010000781803867670,