1987-yamada-kuchi-ezo-hokuo-bunkaken:
  type: article
  title: "口蝦夷・北奥文化圏という仮称"
  author:
    - "山田 秀三"
  date: 1987
  parent:
    type: periodical
    title: "北方研究会々報 7 アイヌ語"
  url: "https://aterui.ws.hosei.ac.jp/togo/detail.php?id=8576&domain=ezo"
  language: "ain"
