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) ,Decomposing total risk of a portfolio into the c ontributions of individual asset s,39th ASTIN Colloquium: Accep etd Papers,,,2009,,,1-18,https://cir.nii.ac.jp/crid/1010282257037001090,