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) Mahito Okura,Why isn't the accident information shared?: a cooperation perspective,Discussion paper series,13440004,Nagasaki : Faculty of Economics,2007-05,2007,4,"1-19,巻頭1枚",https://cir.nii.ac.jp/crid/1520290884382010752,