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)
ECKHARDT J. T.,Opportunities and Entrepreneurship,Journal of Management,,,2003,29,3,333-349,https://cir.nii.ac.jp/crid/1570291225801617536,