著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "久保田, 敬一 and 竹原, 均","Financial sector risk, cross-holdings, and the stock returns : evidence from Tokyo Stock Exchange firms",,"Faculty of Economics, Musashi University",2000,Discussion paper,,,,https://cir.nii.ac.jp/crid/1130282272942883200