@book{ BA56346604,
  author    = "小塩, 隆士 ",
  title     = "年金制度改革のビジョン",
  publisher = "全国勤労者福祉振興協会",
  year      = "2001",
  series    = "福振協資料",
  number    = "no.47",
  URL       = "https://ci.nii.ac.jp/ncid/BA56346604"
}