@book{ BA6984393X,
  author    = "赤川, 学 ",
  title     = "子どもが減って何が悪いか!",
  publisher = "筑摩書房",
  year      = "2004",
  series    = "ちくま新書",
  number    = "511",
  URL       = "https://ci.nii.ac.jp/ncid/BA6984393X"
}