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) Ishida Shigenori,Changes in Demographics and Response to Longevity Risks in Japan,保険学雑誌,03872939,日本保険学会,2012,2012,618,618_209-618_222,https://cir.nii.ac.jp/crid/1390001205164064000,https://doi.org/10.5609/jsis.2012.618_209