@book{ BB2301049X,
  author    = "赤川, 学 ",
  title     = "これが答えだ!少子化問題",
  publisher = "筑摩書房",
  year      = "2017",
  series    = "ちくま新書",
  number    = "1235",
  URL       = "https://ci.nii.ac.jp/ncid/BB2301049X"
}